EP3999213A1 - Copolymères à blocs rigides polyamides et blocs souples comprenant du polyéthylène glycol - Google Patents
Copolymères à blocs rigides polyamides et blocs souples comprenant du polyéthylène glycolInfo
- Publication number
- EP3999213A1 EP3999213A1 EP20751615.4A EP20751615A EP3999213A1 EP 3999213 A1 EP3999213 A1 EP 3999213A1 EP 20751615 A EP20751615 A EP 20751615A EP 3999213 A1 EP3999213 A1 EP 3999213A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blocks
- copolymer
- polyamide
- membrane
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001577 copolymer Polymers 0.000 title claims abstract description 154
- 239000004952 Polyamide Substances 0.000 title claims abstract description 122
- 229920002647 polyamide Polymers 0.000 title claims abstract description 122
- 239000002202 Polyethylene glycol Substances 0.000 title claims abstract description 66
- 229920001223 polyethylene glycol Polymers 0.000 title claims abstract description 66
- 239000012528 membrane Substances 0.000 claims abstract description 119
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 48
- -1 polyethylene Polymers 0.000 claims description 43
- 230000035699 permeability Effects 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 229920000570 polyether Polymers 0.000 claims description 32
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 29
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 25
- 229920001400 block copolymer Polymers 0.000 claims description 22
- 239000001569 carbon dioxide Substances 0.000 claims description 22
- 229920000642 polymer Polymers 0.000 claims description 22
- 229920006395 saturated elastomer Polymers 0.000 claims description 21
- 238000009833 condensation Methods 0.000 claims description 20
- 230000005494 condensation Effects 0.000 claims description 20
- 229920000299 Nylon 12 Polymers 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 14
- 239000002243 precursor Substances 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 229920002292 Nylon 6 Polymers 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 229920000728 polyester Polymers 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 10
- 238000003786 synthesis reaction Methods 0.000 claims description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000008021 deposition Effects 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 5
- 229920006245 ethylene-butyl acrylate Polymers 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 239000005431 greenhouse gas Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 claims description 3
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- 229920001774 Perfluoroether Polymers 0.000 claims description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 claims description 3
- 150000004770 chalcogenides Chemical class 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 3
- 239000005043 ethylene-methyl acrylate Substances 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920001652 poly(etherketoneketone) Polymers 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 229920006295 polythiol Polymers 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 claims description 2
- 229920000265 Polyparaphenylene Polymers 0.000 claims description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 2
- HGVPOWOAHALJHA-UHFFFAOYSA-N ethene;methyl prop-2-enoate Chemical compound C=C.COC(=O)C=C HGVPOWOAHALJHA-UHFFFAOYSA-N 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 238000007791 dehumidification Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 19
- 238000012360 testing method Methods 0.000 description 33
- 229920002614 Polyether block amide Polymers 0.000 description 28
- 238000005259 measurement Methods 0.000 description 25
- VPRUMANMDWQMNF-UHFFFAOYSA-N phenylethane boronic acid Chemical compound OB(O)CCC1=CC=CC=C1 VPRUMANMDWQMNF-UHFFFAOYSA-N 0.000 description 24
- 125000004432 carbon atom Chemical group C* 0.000 description 21
- 238000001125 extrusion Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 150000003077 polyols Chemical class 0.000 description 13
- 229920005862 polyol Polymers 0.000 description 12
- 150000004985 diamines Chemical class 0.000 description 11
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 9
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 229920000571 Nylon 11 Polymers 0.000 description 7
- 239000002253 acid Substances 0.000 description 7
- 150000003951 lactams Chemical class 0.000 description 7
- 238000000113 differential scanning calorimetry Methods 0.000 description 6
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 5
- 125000001931 aliphatic group Chemical group 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 4
- DZIHTWJGPDVSGE-UHFFFAOYSA-N 4-[(4-aminocyclohexyl)methyl]cyclohexan-1-amine Chemical compound C1CC(N)CCC1CC1CCC(N)CC1 DZIHTWJGPDVSGE-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 229920005605 branched copolymer Polymers 0.000 description 4
- 239000006085 branching agent Substances 0.000 description 4
- 125000004427 diamine group Chemical group 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- 150000001408 amides Chemical group 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- 229920001451 polypropylene glycol Polymers 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- HASUJDLTAYUWCO-UHFFFAOYSA-N 2-aminoundecanoic acid Chemical compound CCCCCCCCCC(N)C(O)=O HASUJDLTAYUWCO-UHFFFAOYSA-N 0.000 description 2
- WMRCTEPOPAZMMN-UHFFFAOYSA-N 2-undecylpropanedioic acid Chemical compound CCCCCCCCCCCC(C(O)=O)C(O)=O WMRCTEPOPAZMMN-UHFFFAOYSA-N 0.000 description 2
- IGSBHTZEJMPDSZ-UHFFFAOYSA-N 4-[(4-amino-3-methylcyclohexyl)methyl]-2-methylcyclohexan-1-amine Chemical compound C1CC(N)C(C)CC1CC1CC(C)C(N)CC1 IGSBHTZEJMPDSZ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- OTKFKCIRTBTDKK-UHFFFAOYSA-N [3-(aminomethyl)-5-bicyclo[2.2.1]heptanyl]methanamine Chemical compound C1C(CN)C2C(CN)CC1C2 OTKFKCIRTBTDKK-UHFFFAOYSA-N 0.000 description 2
- YMUAXKYTHNCMAS-UHFFFAOYSA-N [butyl(nitroso)amino]methyl acetate Chemical compound CCCCN(N=O)COC(C)=O YMUAXKYTHNCMAS-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- CJYXCQLOZNIMFP-UHFFFAOYSA-N azocan-2-one Chemical compound O=C1CCCCCCN1 CJYXCQLOZNIMFP-UHFFFAOYSA-N 0.000 description 2
- AIXMJTYHQHQJLU-UHFFFAOYSA-N chembl210858 Chemical compound O1C(CC(=O)OC)CC(C=2C=CC(O)=CC=2)=N1 AIXMJTYHQHQJLU-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- QFTYSVGGYOXFRQ-UHFFFAOYSA-N dodecane-1,12-diamine Chemical compound NCCCCCCCCCCCCN QFTYSVGGYOXFRQ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 238000007429 general method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
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- 229920005597 polymer membrane Polymers 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- HOVAGTYPODGVJG-UVSYOFPXSA-N (3s,5r)-2-(hydroxymethyl)-6-methoxyoxane-3,4,5-triol Chemical compound COC1OC(CO)[C@@H](O)C(O)[C@H]1O HOVAGTYPODGVJG-UVSYOFPXSA-N 0.000 description 1
- PBLZLIFKVPJDCO-UHFFFAOYSA-N 12-aminododecanoic acid Chemical class NCCCCCCCCCCCC(O)=O PBLZLIFKVPJDCO-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- WECIKJKLCDCIMY-UHFFFAOYSA-N 2-chloro-n-(2-cyanoethyl)acetamide Chemical compound ClCC(=O)NCCC#N WECIKJKLCDCIMY-UHFFFAOYSA-N 0.000 description 1
- BTBJCTWMARHHQD-UHFFFAOYSA-N 2-heptadecylpropanedioic acid Chemical compound CCCCCCCCCCCCCCCCCC(C(O)=O)C(O)=O BTBJCTWMARHHQD-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 description 1
- 238000003855 Adhesive Lamination Methods 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 229920000858 Cyclodextrin Polymers 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000000539 amino acid group Chemical group 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
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- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical group OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 229940026085 carbon dioxide / oxygen Drugs 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
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- 210000004534 cecum Anatomy 0.000 description 1
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- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
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- 125000001142 dicarboxylic acid group Chemical group 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical group OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
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- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- TZMQHOJDDMFGQX-UHFFFAOYSA-N hexane-1,1,1-triol Chemical compound CCCCCC(O)(O)O TZMQHOJDDMFGQX-UHFFFAOYSA-N 0.000 description 1
- 229920006017 homo-polyamide Polymers 0.000 description 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- HOVAGTYPODGVJG-UHFFFAOYSA-N methyl beta-galactoside Natural products COC1OC(CO)C(O)C(O)C1O HOVAGTYPODGVJG-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
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- 229920006146 polyetheresteramide block copolymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- QVKOLZOAOSNSHQ-UHFFFAOYSA-N prop-1-ene;prop-2-enoic acid Chemical compound CC=C.OC(=O)C=C QVKOLZOAOSNSHQ-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 150000003504 terephthalic acids Chemical class 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/80—Block polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/44—Polyester-amides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/268—Drying gases or vapours by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/52—Polyethers
- B01D71/521—Aliphatic polyethers
- B01D71/5211—Polyethylene glycol or polyethyleneoxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/52—Polyethers
- B01D71/522—Aromatic polyethers
- B01D71/5222—Polyetherketone, polyetheretherketone, or polyaryletherketone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/52—Polyethers
- B01D71/522—Aromatic polyethers
- B01D71/5223—Polyphenylene oxide, phenyl ether polymers or polyphenylethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/12—Polyester-amides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/20—Specific permeability or cut-off range
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/56—Polyamides, e.g. polyester-amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/12—Polyester-amides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Definitions
- TITLE Polyamide rigid block copolymers and flexible blocks comprising polyethylene glycol
- the present invention relates to a polyamide rigid block and flexible block copolymer, a process for preparing such a copolymer, and a membrane formed from this copolymer.
- membranes for CO 2 separation Journal of Membrane Science, vol. 307, p.88-95 (2008) describes membranes prepared from a mixture of polyamide 6 block copolymer and blocks derived from polyethylene glycol and polyethylene glycol.
- membranes which are highly permeable to water vapor and carbon dioxide but poorly permeable to oxygen.
- the polymer membranes used In enthalpy heat exchangers, the polymer membranes used must be permeable to water vapor while being impermeable to VOCs (volatile organic compounds).
- VOCs volatile organic compounds.
- Liquid desiccant air conditioning applications may also require the use of a water vapor permeable membrane to dehydrate the air before cooling it.
- Increasing the permeability of membranes to water vapor and carbon dioxide can be achieved by increasing the hydrophilicity of the polymer. However, water uptake is also greatly increased, which leads to a degradation of the mechanical properties of the membrane in the water saturated state.
- the invention relates firstly to a rigid block copolymer
- polyamides and flexible blocks comprising, relative to the total weight of the copolymer:
- the flexible blocks are polyether blocks and / or polyether and polyester blocks.
- the flexible blocks are blocks derived from polyethylene glycol.
- the flexible blocks include, in addition to blocks derived from polyethylene glycol, blocks derived from another polyether, such as polytetrahydrofuran and / or propylene glycol, and / or polyester.
- the average carbon content of the repeating units of the polyamide blocks is 8 to 14, preferably 8 to 12.
- the rigid polyamide blocks are blocks of polyamide 11, of polyamide 12, polyamide 6.10, polyamide 6.12, polyamide 10.10, polyamide 10.12, copolyamide 6/1 1, copolyamide 6/12, copolyamide 11/12 or mixtures, or copolymers, thereof.
- the copolymer comprises from 56 to 90%, preferably from 57%, from 58% or from 59% to 90% by weight of flexible blocks, relative to the total weight of the copolymer.
- the copolymer comprises from 10 to 44%, preferably from 10 to 43% or, from 10 to 42%, or from 10 to 41% by weight of rigid polyamide blocks, relative to the total weight of the copolymer .
- the copolymer comprises from 60 to 90% by weight of flexible blocks and from 10 to 40% by weight of rigid blocks
- the copolymer comprises at least 40% by weight of flexible blocks derived from polyethylene glycol, preferably from 50 to 90% by weight, or from 55% to 90%, or from 56% to 90%, more preferably from 60 to 80% by weight, relative to the total weight of the copolymer.
- the copolymer is a block copolymer of polyamide 11 and of blocks derived from polyethylene glycol, a copolymer of blocks of polyamide 11 and of blocks derived from polyethylene glycol and of blocks derived from polytetrahydrofuran, a copolymer with polyamide 12 blocks and blocks from polyethylene glycol, a block copolymer of polyamide 12 and blocks from polyethylene glycol and blocks from polytetrahydrofuran, a block copolymer of 6/1 1 copolyamide and blocks from polyethylene glycol or a copolymer with 6/1 1 copolyamide blocks and with blocks derived from polyethylene glycol and with blocks derived from polytetrahydrofuran.
- the copolymer has an elongation at break in the water-saturated state greater than or equal to 100%, preferably greater than or equal to 200%, more preferably greater than or equal to 300%.
- the copolymer exhibits water absorption at saturation at 23 ° C. ranging from 50 to 160% by pods, preferably from 50 to 150% by weight, relative to the total weight of the copolymer.
- the invention also relates to a membrane comprising a copolymer as described above.
- the membrane is waterproof-breathable.
- the membrane exhibits selectivity, defined as the ratio of its permeability to carbon dioxide and its permeability to oxygen, measured at a temperature of 23 ° C and at 0% relative humidity, greater than or equal to to 10, preferably greater than or equal to 12.
- the membrane has an MVTR water vapor permeability of at least 800 g / m 2 , preferably at least 900 g / m 2 , more preferably at least 1000 g / m 2.
- m 2 more preferably from 1000 to 5000 g / m 2 , per 24 hours, at 23 ° C, for a relative humidity level of
- the membrane has a thickness of 0.05 to 100 mm, preferably 0.5 to 50 mm.
- the membrane further comprises at least one polymer or oligomer chosen from polyolefins such as polyethylene, polypropylene, poly-3-methylbutene-1 and poly-4-methylpentene-1; vinyl polymers such as polystyrene, poly (methyl methacrylate); polysulfones; fluorinated or chlorinated polymers such as poly (vinylidene fluoride), polytetrafluoroethylene, fluorovinylethylene / tetrafluoroethylene copolymers, polychloroprene; polyamides such as PA 6, PA 6.6 and PA 12; copolymers with rigid blocks and with flexible blocks, such as copolymers with polyamide blocks and polyether blocks; polyesters such as polyethylene terephthalate, polybutene terephthalate and polyethylene-2,6-naphthalate; polycarbonates such as poly-4,4′-dihydroxydiphenil-2,2-propane carbonate; polyethers such as polyoxymethylene and poly
- polydimethylsiloxane, perfluoroalkoxy polyethylene glycol; ethylene vinyl acetate; methyl ethylene acrylate; ethylene- (ethylene-butyl acrylate) -maleic anhydride, ethylene- (ethylene-methyl acrylate) -maleic anhydride, ethylene-glycidyl methacrylate- (ethylene-butyl acrylate), ethylene- (ethylene-methyl acrylate) terpolymers - glycidyl methacrylate, ethylene- (ethylene-vinyl acetate) -maleic anhydride; and their mixtures.
- the invention also relates to the use of a copolymer as described above, for the manufacture of a gas separation membrane, or of a membrane for dehumidifying gas, for example air, or an enthalpy heat exchanger membrane, or a textile membrane.
- the gas separation membrane is a membrane for recovering greenhouse gases.
- the invention also relates to a process for preparing a copolymer as described above, comprising the following steps:
- the invention also relates to a process for preparing a copolymer as described above, comprising mixing the flexible blocks with polyamide precursors and a diacid chain limiter.
- the invention also relates to a process for manufacturing a membrane as described above, comprising the following steps:
- the invention also relates to a process for manufacturing a membrane as described above, comprising the following steps:
- the present invention makes it possible to meet the need expressed above. It more particularly provides copolymers which can be used for the preparation of membranes, said membranes having a high permeability to water vapor and to carbon dioxide. Said membranes also exhibit, among other things, a high selectivity towards carbon dioxide over oxygen while maintaining good mechanical properties in the wet state and good durability.
- the invention also exhibits one or preferably more of the characteristics advantageous listed below: waterproof properties, high selectivity of water vapor relative to other gases, good selectivity of carbon dioxide relative to dinitrogen, good selectivity of hydrogen sulfide by compared to methane, good selectivity of VOCs compared to dinitrogen.
- FIG. 1 shows the tensile curves in the transverse direction to extrusion obtained for PEBA No. 3 described in Example 1.
- the elongation, in mm, is shown on the x-axis and the stress, in MPa, on the y-axis.
- the black curve represents the tensile curve obtained before the MVTR measurement test and the gray curve represents the tensile curve obtained after the MVTR measurement test.
- the elongation, in mm, is shown on the x-axis and the stress, in MPa, on the y-axis.
- the black curve represents the tensile curve obtained before the MVTR measurement test and the gray curve represents the tensile curve obtained after the MVTR measurement test.
- FIG. 3 shows the tensile curves in the transverse direction to the extrusion obtained for PEBA No. 2 described in Example 1.
- the elongation, in mm, is shown on the x-axis and the stress, in MPa, on the y-axis.
- the black curve represents the tensile curve obtained before the MVTR measurement test and the gray curve represents the tensile curve obtained after the MVTR measurement test.
- FIG. 4 shows the tensile curves in the longitudinal direction at the extrusion obtained for PEBA No. 2 described in Example 1.
- the elongation, in mm, is shown on the x-axis and the stress, in MPa, on the y-axis.
- the black curve represents the tensile curve obtained before the MVTR measurement test and the gray curve represents the tensile curve obtained after the MVTR measurement test.
- FIG. 5 shows the tensile curves in the transverse direction to the extrusion obtained for PEBA No. 7 described in Example 1.
- the elongation, in mm, is shown on the x-axis and the stress, in MPa, on the y-axis.
- the black curve represents the tensile curve obtained before the MVTR measurement test and the gray curve represents the tensile curve obtained after the MVTR measurement test.
- the invention relates to a rigid block and flexible block copolymer.
- These copolymers are thermoplastic elastomeric polymers (TPE) comprising rigid blocks (or hard, with rather
- thermoplastic thermoplastic
- flexible blocks or flexible, or soft, at the
- the term “rigid block” is understood to mean a block which has a melting point or a glass transition temperature of greater than 20 ° C. (in the case of amorphous blocks).
- the presence of a melting point can be determined by differential scanning calorimetry, according to ISO 1 1357-3 Plastics - Differential scanning calorimetry (DSC) Part 3.
- flexible block is meant a block having a glass transition temperature (Tg) less than or equal to 0 ° C.
- Tg glass transition temperature
- the glass transition temperature can be determined by differential scanning calorimetry, according to ISO 1 1357-2 Plastics - Differential scanning calorimetry (DSC) Part 2.
- the rigid blocks of the copolymer according to the invention are polyamide blocks. Three types of polyamide blocks can advantageously be used.
- the polyamide blocks come from the condensation of a dicarboxylic acid, in particular those having from 4 to 36 carbon atoms, preferably those having from 6 to 18 carbon atoms, and from an aliphatic or aromatic diamine. , in particular those having 2 to 20 carbon atoms, preferably those having 6 to 14 carbon atoms.
- dicarboxylic acids examples include 1, 4-cyclohexyldicarboxylic acid, butanedioic, adipic, azelaic, suberic, sebacic, dodecanedicarboxylic, octadecanedicarboxylic and terephthalic and isophthalic acids, but also dimerized fatty acids.
- diamines examples include tetramethylene diamine, hexamethylenediamine, 1, 10-decamethylenediamine,
- dodecamethylenediamine trimethylhexamethylene diamine, bis- (4-aminocyclohexyl) -methane (BACM), bis- (3-methyl-4-aminocyclohexyl) methane (BMACM), and 2-2-bis- (3-methyl- isomers 4- aminocyclohexyl) -propane (BMACP), para-amino-di-cyclo-hexyl-methane (PACM), isophoronediamine (IPDA), 2,6-bis- (aminomethyl) -norbornane (BAMN) and piperazine (Pip).
- BMACP 4- aminocyclohexyl) -propane
- PAMN para-amino-di-cyclo-hexyl-methane
- IPDA isophoronediamine
- BAMN 2,6-bis- (aminomethyl) -norbornane
- Pip piperazine
- PA 4.12, PA 4.14, PA 4.18, PA 6.10, PA 6.12, PA 6.14, PA 6.18, PA 9.12, PA 10.10, PA 10.12, PA 10.14 and PA 10.18 polyamide blocks are used.
- X represents the number of carbon atoms resulting from the diamine residues
- Y represents the number of carbon atoms resulting from the diacid residues, in a conventional manner.
- the polyamide blocks result from the condensation of one or more a, w-aminocarboxylic acids and / or one or more lactams having from 7 to 12 carbon atoms in the presence of a dicarboxylic acid having 4 12 carbon atoms or a diamine.
- lactams examples include enantholactam and lauryllactam.
- a, w-amino carboxylic acid mention may be made of 7-amino-heptanoic, 11-amino-undecanoic and 12-amino-dodecanoic acids.
- the polyamide blocks of the second type are blocks of PA 1 1 (polyundecanamide) or of PA 12 (polydodecanamide).
- PA X represents the number of carbon atoms resulting from amino acid residues.
- the polyamide blocks result from the condensation of at least one ⁇ , w-aminocarboxylic acid (or one lactam), at least one diamine and at least one dicarboxylic acid.
- polyamide PA blocks are prepared by polycondensation:
- the diacid is used as chain limiter.
- carboxylic acid having Y carbon atoms which is introduced in excess relative to the stoichiometry of the diamine (s).
- the polyamide blocks result from the condensation of at least two a, w-aminocarboxylic acids or of at least two lactams having from 6 to 12 carbon atoms or of a lactam and a aminocarboxylic acid not having the same number of carbon atoms in the possible presence of a chain limiter.
- aliphatic ⁇ , w-aminocarboxylic acid mention may be made of the acids
- lactam mention may be made of
- caprolactam oenantholactam and lauryllactam.
- aliphatic diamines mention may be made of hexamethylenediamine,
- dodecamethylenediamine and trimethylhexamethylene diamine examples include 1,4-cyclohexyldicarboxylic acid.
- examples of aliphatic diacids mention may be made of butane-dioic, adipic, azelaic, suberic, sebacic, dodecanedicarboxylic acids and dimerized fatty acids. These dimerized fatty acids preferably have a dimer content of at least 98%; preferably they are hydrogenated; this is for example products
- isophthalic I
- cycloaliphatic diamines mention may be made of the isomers of bis- (4-aminocyclohexyl) -methane (BACM), bis- (3-methyl-4-aminocyclohexyl) methane (BMACM) and 2-2-bis- (3-methyl-4-aminocyclohexyl) -propane (BMACP), and para-amino-di-cyclo-hexyl-methane (PACM).
- BMACM bis- (4-aminocyclohexyl) -methane
- BMACM bis- (3-methyl-4-aminocyclohexyl) methane
- BMACP 2-2-bis- (3-methyl-4-aminocyclohexyl) -propane
- PAM para-amino-di-cyclo-hexyl-methane
- IPDA isophoronediamine
- BAMN 2,6-bis- (
- polyamide blocks of the third type the following may be mentioned: - PA 6.6 / 6.10 / 1 1/12, where 6.6 denotes hexamethylenediamine condensed with adipic acid, 6.10 denotes hexamethylenediamine condensed with sebacic acid, 1 1 denotes units resulting from the condensation of the acid aminoundecanoic and 12 denotes units resulting from the condensation of lauryllactam;
- PA X / Y, PA X / Y / Z, etc. relate to copolyamides in which X, Y, Z, etc. represent homopolyamide units as described above.
- the repeating units of the polyamide blocks of the copolymer according to the invention have an average carbon content greater than or equal to 7.
- average carbon content of the repeat units is meant the average of the numbers of carbon atoms of each repeat unit present in the polyamide blocks of the copolymer, weighted by the molar proportion of said repeat unit relative to the quantity total polyamide blocks.
- the average level of carbon is worth: (ax X + bx Y) / 100.
- the average carbon content of the repeating units of the polyamide blocks is equal to the number of carbon atoms of said repeating unit, knowing that a polyamide repeating unit contains, in a known manner, only one amide function.
- the number of carbon atoms of the repeat unit is X.
- the number of carbon atoms of the repeat unit is (X + Y ) / 2 since the XY unit comprises two amide functions.
- the polyamide blocks of the copolymer according to the invention comprise, or consist of, blocks of polyamide PA 11, PA 12, PA 5.4, PA 5.9, PA 5.10, PA 5.12, PA 5.13, PA 5.14, PA 5.16, PA 5.18, PA 5.36, PA 6.4, PA 6.9, PA 6.10, PA 6.12, PA 6.13, PA 6.14, PA 6.16, PA 6.18,
- the polyamide blocks of the copolymer comprise, or consist of, blocks of polyamide PA 1 1, PA 12, PA 6.10, PA 6.12, PA 10.10, PA 10.12, or of copolyamide PA 6/1 1, PA 6 / 12, PA 11/12, or mixtures or copolymers thereof.
- the average carbon content of the repeating units of the polyamide blocks of the copolymer according to the invention is from 8 to 14, plus
- this carbon content of the repeat units is from 7 to 8, or from 8 to 9, or from 9 to 10, or from 10 to 1 1, or from 1 1 to 12, or 12 to 13, or 13 to 14, or 14 to 15, or 15 to 18, or 18 to 22, or 22 to 25, or 25 to 30, or 30 to 40.
- the flexible blocks of the copolymer are advantageously polyether blocks (the copolymer is then a PEBA or copolymer with polyamide blocks and polyether blocks) or polyether and polyester blocks.
- Polyether blocks are made up of alkylene oxide units.
- the flexible blocks of the copolymer according to the invention comprise blocks derived from polyethylene glycol (PEG).
- PEG polyethylene glycol
- the proportion by weight of blocks derived from polyethylene glycol in the copolymer is at least 35% relative to the total weight of the copolymer.
- the copolymer according to the invention comprises at least 40% by weight of blocks derived from PEG, more preferably the copolymer comprises from 50 to 90% by weight of blocks derived from PEG, more preferably from 60 to 80% by weight , relative to the total weight of the copolymer.
- the copolymer comprises 35-40%, or 40-45%, or 45-50%, or 50-55%, or 55-60%, or 60-65%, or from 65 to 70% by weight, or from 70 to 75% by weight, or from 75 to 80%, or from 80 to 85%, or from 85 to 90%, by weight, of blocks derived from PEG, relative to the total weight of the copolymer.
- the flexible blocks of the copolymer according to the invention consist of blocks derived from PEG.
- the flexible blocks of the copolymer can contain at least one other block in addition to the blocks derived from PEG.
- the flexible blocks of the copolymer can also comprise, in addition to the blocks derived from PEG, one or more other polyethers and / or polyesters and / or polysiloxanes and / or polydimethylsiloxanes (or PDMS) and / or polyolefins. and / or polycarbonates.
- Possible flexible blocks are described, for example, in the French patent application FR 2941700 A1, from page 32 line 3 to page 33 line 8, from page 34 line 16 to page 37 line 13 and on page 38 lines 6 to 23.
- this other block is a polyether block other than a block derived from PEG and / or a polyester block.
- the copolymers can include in their chain several types of polyethers other than a block derived from PEG, the corresponding copolyethers can be block or random.
- polyether block other than a block derived from PEG suitable for the invention mention may be made of blocks derived from PPG (polypropylene glycol) consisting of propylene oxide units, blocks derived from P03G
- polytrimethylene glycol made up of polytrimethylene glycol ether units and blocks from PTMG (polytetramethylene glycol) made up of tetramethylene glycol units, also called polytetrahydrofuran, or any combination of these.
- the polyether block is a block derived from polypropylene glycol and / or from
- the polyether blocks can also consist of ethoxylated primary amines.
- ethoxylated primary amines mention may be made of the products of formula:
- m and n are integers between 1 and 20 and x an integer between 8 and 18.
- the flexible blocks can include polyether blocks
- polyoxyalkylenes with NH 2 chain ends such blocks being obtainable by cyanoacetylation of aliphatic ⁇ , w-dihydroxylated polyoxyalkylene blocks called polyetherdiols.
- commercial products Jeffamine or Elastamine can be used (for example Jeffamine® D400, D2000, ED 2003, XTJ 542, commercial products of the company Huntsman, also described in the documents JP 2004346274, JP 2004352794 and EP 1482011).
- the polyetherdiol blocks are either used as such and copolycondensed with rigid blocks having carboxylic ends, or aminated to be transformed into polyether diamines and condensed with rigid blocks having carboxylic ends.
- copolymers according to the present invention include copolymers comprising three, four (or even more) different blocks chosen from those described in the present description, since these blocks comprise at least polyamide blocks and blocks derived from polyethylene glycol.
- the copolymer according to the invention may be a segmented block copolymer comprising three different types of blocks (or "triblocks"), which results from the condensation of several of the blocks described above.
- Said triblock may for example be a copolymer comprising a polyamide block, a polyester block and a block derived from PEG or a copolymer comprising a polyamide block and two different polyether blocks, for example a block derived from PEG and a block derived from PTMG.
- the copolymers according to the invention comprise, or consist of, blocks of PA 11, PA 12, PA 6, derived from PEG, derived from PTMG or any mixture or combination thereof, provided that the average carbon content of the repeating units of the polyamide blocks of the copolymer is greater than or equal to 7 and that the copolymer comprises at least 35% by weight of blocks derived from polyethylene glycol.
- Particularly preferred copolymers in the context of the invention are copolymers comprising blocks (or consisting of blocks):
- the number-average molar mass of the rigid polyamide blocks in the copolymer according to the invention is preferably from 400 to 20,000 g / mol, more preferably from 500 to 10,000 g / mol, even more preferably from 600 to 6,000 g / mol.
- the number-average molar mass of the rigid polyamide blocks in the copolymer is from 400 to 500 g / mol, or from 500 to 1000 g / mol, or from 1000 to 1500 g / mol, or from 1500 to 2000 g / mol, or 2000 to 2500 g / mol, or 2500 to 3000 g / mol, or 3000 to 3500 g / mol, or 3500 to 4000 g / mol, or 4000 to 5000 g / mol, or from 5000 to 6000 g / mol, or from 6000 to 7000 g / mol, or from 7000 to 8000 g / mol, or from 8000 to 9000 g / mol, or from 9000 to 1000 g / mol, or from 10,000 to 11000 g / mol, or from 11000 to 12000 g / mol, or from 12000 to 13000 g / mol, or from 13000 to 14000 g
- the number-average molar mass of the flexible blocks is preferably from 100 to 6000 g / mol, more preferably from 200 to 3000 g / mol. In embodiments, the number-average molar mass of the flexible blocks is from 100 to 200 g / mol, or from 200 to 500 g / mol, or from 500 to 800 g / mol, or from 800 to 1000 g / mol.
- the number-average molar mass is fixed by the content of chain limiter. It can be calculated according to the relation:
- Mn n monomer X MW repeat pattern / n chain stopper + MW chain stopper
- n monomer is the number of moles of monomer
- n iimiteur chain represents the number of moles limiter (by diacid example) in excess
- MW repeating unit represents the molar mass of the repeating unit
- MW limiter chain represents the molar mass of the excess limiter (eg diacid).
- the number-average molar mass of the rigid blocks and of the flexible blocks can be measured before the copolymerization of the blocks by gel permeation chromatography (GPC).
- the number-average molar mass of the polyol blocks can be determined by measuring the hydroxyl number.
- the copolymer according to the invention can be a linear or branched copolymer.
- the copolymer can be a branched copolymer in which the branchings are made by a functional polyol residue. greater than 2 (i.e. the polyol has at least three hydroxyl groups) binding polyamide rigid blocks of the copolymer.
- the copolymer according to the invention comprises from 55 to 90% by weight of flexible blocks and from 10 to 45% by weight of rigid polyamide blocks, relative to the total weight of the copolymer.
- the mass proportions of the flexible blocks and the rigid blocks in the copolymer can be determined by DSC (differential scanning calorimetry).
- the copolymer comprises from 60 to 90% by weight of flexible blocks and from 10 to 40% by weight of rigid polyamide blocks, relative to the total weight of the copolymer.
- the copolymer can comprise, relative to the total weight of the copolymer, from 55 to 60% by weight of flexible blocks and from 40 to 45% by weight of rigid polyamide blocks; or from 60 to 65% by weight of flexible blocks and from 35 to 40% by weight of rigid polyamide blocks; or from 65 to 70% by weight of flexible blocks and from 30 to 35% by weight of rigid polyamide blocks; or from 70 to 75% by weight of flexible blocks and from 25 to 30% by weight of rigid polyamide blocks; or from 75 to 80% by weight of flexible blocks and from 20 to 25% by weight of rigid polyamide blocks; or from 80 to 85% by weight of flexible blocks and from 15 to 20% by weight of rigid polyamide blocks; or from 85 to 90% by weight of flexible blocks and from 10 to 15% by weight of rigid polyamide blocks.
- the copolymer consists essentially or consists of the proportions of soft blocks and rigid blocks
- the copolymer according to the invention exhibits, in the water-saturated state (that is to say at water saturation), an elongation at break greater than or equal to 100%.
- the copolymer has in the water-saturated state an elongation at break greater than or equal to 150%, more preferably greater than or equal to 200%, more preferably still greater than or equal to 250%, more preferably still greater than or equal at 300%, more preferably still greater than or equal to 350%.
- the elongation at break in the water-saturated state can be measured according to ISO 527 1 BA: 2012.
- water-saturated state or “water-saturated state” is meant the state in which the water uptake of the copolymer is maximum (the copolymer cannot take up additional water).
- This water-saturated state can be achieved by placing a sample of copolymer immersed in water and carrying out regular measurements of the mass of the sample: the water-saturated state is reached when the mass of the sample is stabilized (it no longer varies).
- the copolymer according to the invention has an elongation at break in the dry state greater than or equal to 400%, preferably greater than or equal to 450%, more preferably greater than or equal to 500%, more preferably still greater than or equal to 550%, more preferably still greater than or equal to 600%.
- the elongation at break in the dry state can be measured according to ISO 527 1 BA: 2012.
- the copolymer according to the invention preferably exhibits a tensile strength in the water-saturated state greater than or equal to 1 MPa, preferably greater than or equal to 2 MPa, more preferably greater than or equal to 3 MPa, even more preferably greater than or equal to 4 MPa.
- the tensile stress in the water saturated state can be measured according to ISO 527 1 BA: 2012.
- the copolymer according to the invention preferably exhibits a tensile strength in the dry state greater than or equal to 10 MPa, preferably greater than or equal to 12 MPa, more preferably greater than or equal to 15 MPa.
- the tensile strength in the dry state can be measured according to ISO 527 1 BA: 2012.
- the copolymer according to the invention has an absorption of water at saturation at 23 ° C of 50 to 160% by weight relative to the weight of the copolymer, preferably from 50 to 150% by weight, for example from 50 to 100 % by weight, or 100 to 125% by weight, or 125 to 150% by weight, or 150 to 160% by weight.
- the saturated water absorption at 23 ° C of the copolymer can be determined according to ISO 62: 2008.
- the invention also relates to a process for preparing the copolymer as described above.
- the polymers with rigid polyamide blocks and with flexible blocks can be prepared according to a so-called “two-step” preparation process (comprising a first step of synthesis of the polyamide blocks then a second step of condensation of the polyamide blocks and flexible) or by a so-called “one-step” preparation process.
- the copolymer is prepared in a two-step process. This process includes the following steps:
- the copolymer according to the invention can be prepared according to a one-step process, comprising mixing the flexible blocks with polyamide precursors and a diacid chain limiter.
- the general method of preparation in two stages (that is to say, a first stage of synthesis of the polyamide blocks then a second stage of condensation of the polyamide and polyether blocks) of the copolymers containing polyamide blocks and polyether blocks (also called PEBA according to IUPAC, or polyether-block-amide) having ester bonds between the PA blocks and the PE blocks is known and is described, for example, in document FR 2846332.
- the general method for preparing PEBA copolymers having bonds amides between the PA blocks and the PE blocks is known and described, for example in document EP 148201 1.
- the polyether blocks can also be mixed with polyamide precursors and a diacid chain limiter to prepare the polymers containing polyamide blocks and blocks. polyethers having units distributed in a statistical manner (one-step process).
- the polyamide rigid block and flexible block copolymers result from the polycondensation of polyamide blocks with reactive ends with flexible blocks with reactive ends, such as, among others, polycondensation :
- polyetherdiols aliphatic ⁇ , w-dihydric polyoxyalkylene blocks
- the polyamide blocks containing dicarboxylic chain ends originate, for example, from the condensation of polyamide precursors in the presence of a dicarboxylic acid chain limiter.
- the polyamide blocks having diamine chain ends originate, for example, from the condensation of polyamide precursors in the presence of a chain-limiting diamine.
- the copolymer is a branched copolymer, it can be prepared by adding, during its synthesis, one or more polyols comprising at least three hydroxyl groups as a branching agent. In the one or two step processes described above, the polyol is added with the
- polystyrene resin preferably from 0.01 to 5% by weight, more preferably from 0.05 to 0.5% by weight, relative to the total weight of polyol, polyamide precursors and soft blocks.
- the addition of a polyol comprising at least three hydroxyl groups causes bridging bonds connecting together the rigid polyamide blocks of the copolymer, preferably via ester bonds.
- the polyol can in particular be:
- a monomeric polyol in particular a monomeric aliphatic triol such as glycerol, trimethylolpropane, pentaerythritol, and / or
- a polymer polyol in particular a triol containing polyether chains, a polycaprolactone triol, a mixed polyether-polyester polyol comprising at least three hydroxyl groups.
- the polyol is chosen from: pentaerythritol,
- the weight-average molar mass of the polyol is preferably at most 3000 g / mol, more preferably at most 2000 g / mol.
- the invention also relates to a membrane (or film) comprising a copolymer as described above.
- the thickness of the membrane according to the invention is preferably from 0.05 to 100 mm. Particularly preferably, the thickness is from 0.5 to 50 mm.
- the thickness of the membrane may be 0.05 to 0.5 mm, or 0.5 to 1 mm, or 1 to 2 mm, or 2 to 5 mm, or 5 to 10 mm, or 10 to 20 mm, or 20 to 30 mm, or 30 to 40 mm, or 40 to 50 mm, or 50 to 60 mm, or 60 to 70 mm, or 70 to 80 mm, or 80 to 90 mm, or from 90 to 100 mm.
- the membrane consists essentially of, or consists of, a copolymer as described above.
- the membrane according to the invention further comprises at least one additional polymer or oligomer chosen from polyolefins such as polyethylene, polypropylene, poly-3-methylbutene-1 and poly-4-. methylpentene-1; vinyl polymers such as polystyrene, poly (methyl methacrylate); polysulfones; fluorinated or chlorinated polymers such as poly (vinylidene fluoride), polytetrafluoroethylene, fluorovinylethylene / copolymers
- polyolefins such as polyethylene, polypropylene, poly-3-methylbutene-1 and poly-4-. methylpentene-1
- vinyl polymers such as polystyrene, poly (methyl methacrylate); polysulfones
- fluorinated or chlorinated polymers such as poly (vinylidene fluoride), polytetrafluoroethylene, fluorovinylethylene / copolymers
- polyesters such as polyethyleneterephthalate, polybuteneterephthalate and polyethylene-2,6-naphthalate; polycarbonates such as poly-4,4′-dihydroxydiphenil-2,2-propane carbonate; polyethers such as polyoxymethylene and polymethylene sulfide; poly-phenylenes
- chalcogenides such as polythioether, polyphenylene oxide and
- polyphenylene sulfide polyether ether ketones
- polyether ketone ketones polyether ketone ketones
- silicones such as polyvinyltrimethylsiloxane
- polydimethylsiloxane perfluoroalkoxy; polyethylene glycol; ethylene vinyl acetate (EVA); ethylene methyl acrylate (EMA); ethylene-EBA (ethylene-butyl acrylate) -MAH (maleic anhydride), ethylene-EMA-MAH, ethylene-GMA (glycidyl methacrylate) -EBA, ethylene-EMA-GMA, ethylene-EVA-MAH terpolymers; and their mixtures.
- the membrane comprises at least 50% by weight of copolymer with rigid polyamide blocks and with flexible blocks as described above and at most 50% by weight of additional polymer or oligomer, relative to the total weight of the membrane.
- the membrane can also comprise one or more additives chosen from the group consisting of UV stabilizers, crosslinking agents, pigments, metal oxides, zeolites and their mixtures, preferably in a quantity by weight of 0.01 to 30% by weight. weight relative to the total weight of the membrane.
- the membrane according to the invention can be a composite membrane, that is to say comprising at least one polymer layer as described above, deposited on at least one porous, microporous or support layer.
- the membrane is a waterproof-breathable membrane.
- waterproof-breathable is meant permeable to water vapor and
- the membrane according to the invention has a water vapor permeability (MVTR, for “Moisture Vapor Transmission Rate”) of at least 800 g / m 2 per 24 hours, at 23 ° C, at a rate relative humidity of 50%, for a membrane thickness of 30 mm. More preferably, the permeability to water vapor MVTR of the membrane is at least 900 g / m 2/24 h, more preferably at least 1000 g / m 2/24 h, even more preferably from 1000 to 5000 g / m 2/24 h , at 23 ° C, at a relative humidity of 50%, for a membrane thickness of 30 mm.
- MVTR Water vapor permeability
- the MVTR membrane permeability can range from 800 to 900 g / m 2/24 hr, or from 900 to 1000 g / m 2/24 hr, or from 1000 to 1200 g / m 2/24 h or 1200 to 1500 g / m 2/24 hr, or from 1500 to 2000 g / m 2/24 h, or 2000 to 2500 g / m 2/24 hr, or from 2500 to 3000 g / m 2/24 h, or 3000 to 3500 g / m 2/24 h, or 3500 to 4000 g / m 2/24 hr, or from 4000 to 4500 g / m 2/24 hr, or from 4500 to 5000 g / m 2/24 h, at 23 ° C, at a relative humidity of 50%, for a membrane thickness of 30 mm.
- the membrane according to the invention advantageously has a permeability to carbon dioxide CO 2 TR (for “CO2 transmission rate”) greater than or equal to 100,000 cm 3 .25 mm / m 2 .24h.atm, at 23 ° C, at relative humidity of 0%.
- the permeability of the membrane to carbon dioxide is greater than or equal to 120,000 cm 3 .25 mm / m 2 .24h.atm, more preferably greater than or equal to 150,000 cm 3 .25 mm / m 2 .24h .atm, even more preferably greater than or equal to 160,000
- cm 3 .25 mm / m 2 .24h.atm even more preferably greater than or equal to 180,000 cm 3 .25 mm / m 2 .24h.atm, even more preferably greater than or equal to 200,000 cm 3 .25 mm / m 2 .24h.atm, at 23 ° C, at 0% relative humidity.
- the permeability of the membrane to carbon dioxide at 23 ° C, at a relative humidity of 0%, for a membrane thickness of 25 mm can be determined according to the following method: in a permeation cell, the upper side of the film to be tested is swept by the test gas and the flow which diffuses through the film in the lower part swept by a carrier gas is analyzed by gas chromatography.
- the operating parameters are as follows:
- LYSSY GPM 500 coupled with the detection device
- quantity is the volume of gas of interest (here CO 2 ) which has passed through the film
- e is the thickness of the film
- area is the area of the film
- duration is the duration of the sweep of the test gas
- p1 and p2 are the partial pressures on either side of the film, respectively upstream and downstream of the film.
- the membrane according to the invention advantageously exhibits a permeability to oxygen transmission rate (OTR) of less than or equal to 50,000 cm 3 .25 mm / m 2 .24h.atm, at 23 ° C, at a relative humidity of 0%.
- OTR oxygen transmission rate
- the oxygen permeability of the membrane is less than or equal to 40,000 cm 3 .25 mm / m 2 .24h.atm, more preferably less than or equal to 30,000 cm 3 .25 mm / m 2 .24h.atm, more preferably less than or equal to 30,000 cm 3 .25 mm / m 2 .24h.atm , even more preferably less than or equal to 25,000 cm 3 .25 mm / m 2 .24h.atm, even more
- the permeability of the membrane to oxygen at 23 ° C, at a relative humidity of 0%, for a membrane thickness of 25 mm, can be determined according to the method described above in relation to the permeability to carbon dioxide (except that the gas of interest is O 2 ).
- the membrane according to the invention has a carbon dioxide / P CO2 / P O2 selectivity greater than or equal to 10.
- the carbon dioxide / oxygen selectivity of a membrane corresponds to the ratio of the permeability to carbon dioxide of said membrane. membrane on the permeability to dioxygen of said membrane, measured at a temperature of 23 ° C. and at 0% relative humidity.
- the permeabilities of the membrane to carbon dioxide and to oxygen are determined under the same conditions and can be measured as described above.
- the P C02 / P O2 selectivity of the membrane is greater than or equal to 12, more preferably greater than or equal to 13, more preferably still greater than or equal to 14, more preferably still greater or equal to 15. In other advantageous embodiments, it is greater than or equal to 16, or to 17 or to 18.
- the invention also relates to the use of a copolymer as described above for the manufacture of a membrane.
- the membrane is a gas separation membrane, or a membrane for dehumidifying gases, for example air, or a membrane
- the membrane can also be a membrane for recovering greenhouse gases, in particular carbon dioxide and / or methane.
- the membrane according to the invention can be prepared in a known manner by any melt process (for example, by flat film extrusion
- solvent extrusion or by extrusion coating on a support
- solvent process for example by deposition in the solvent / evaporation process (“solvent cast”)
- the membrane can be manufactured by a process comprising the following steps:
- the membrane can be made by a process
- the polymer layer can be deposited on the support layer by extrusion coating, extrusion lamination, adhesive lamination, deposition by solvent / evaporation (“solvent cast”), atomization (“spray coating”), welding or sealing.
- Membranes were prepared from various polyamide block and flexible block copolymers by a flat film extrusion process
- the extrusion temperatures are between 180 ° C and 230 ° C and are adapted according to the guard of the copolymer.
- the copolymer of membrane no. 8 was prepared from PEG diamine blocks.
- Membranes No. 7 to 10 are according to the invention and membranes No. 1 to 6 correspond to comparative examples.
- MVTR water vapor permeability was measured at 23 ° C, at 50% relative humidity, according to ASTM E96B.
- the permeability to oxygen OTR and the permeability to carbon dioxide CO 2 TR were measured at 23 ° C., at a relative humidity level of 0%, according to the method described above in the description.
- the values indicated are the values normalized for a 25 mm film.
- the selectivity P CO 2 / P O 2 was calculated by dividing the permeability CO 2 TR by the permeability OTR.
- membranes according to the invention exhibit both high water vapor permeability
- the membranes nos. 1, 2 and 3 have a lower permeability to carbon dioxide.
- Membrane No. 1 also has low permeability to water vapor.
- Membranes 4 and 5 have low water vapor permeability and low P CO 2 / P O 2 selectivity.
- Membrane No. 6 has insufficient mechanical properties in the water saturated state, due to very high water uptake. There is a very marked decrease in the elongation at break and the stress at break in the water-saturated state compared to these characteristics measured in the dry state.
- 50mm thick films were prepared from the three PEBAs as described above and tensile tests were performed on these films, before and after they underwent an MVTR measurement test. .
- the films were allowed to air dry a few minutes before the tensile tests.
- PEBA n ° 3 in the transverse direction, there is a very strong reduction in the elongation at break and in the stress at break after the MVTR measurement test compared to these characteristics measured before the test (figure 1). In the longitudinal direction, a decrease in the elongation at break and in the stress at break is also observed after the MVTR measurement test, although this is less important than in the transverse direction (figure 2). PEBA n ° 3 is therefore sensitive to the MVTR measurement test, its mechanical properties were degraded following this test.
- the polymer film exhibits, after the MVTR measurement test, an elongation at break, in the transverse direction, similar to that obtained before the test (FIG. 3). However, in the longitudinal direction the elongation and the tensile strength after the test are lower than those before the test ( Figure 4).
- PEBA # 2 exhibits relatively dump resistance to MVTR measurement test, however its carbon dioxide permeability is too low as shown above.
- the film has similar mechanical properties before and after the MVTR measurement test, whether in terms of stress at break or elongation at break (figure 5).
- the elongation at break measured after the MVTR measurement test decreased compared to that measured before the test ( Figure 6).
- PEBA No. 7 has a good resistance to the MVTR measurement test and retains its mechanical properties after this test.
- Branched copolymers were prepared according to a two-step process in which the polyamide blocks were first synthesized by mixing the polyamide precursors with a branching agent and then the flexible blocks derived from PEG were added and condensed with the polyamide blocks.
- the quantity by weight of the branching agent corresponding to the percentage by weight of the branching agent, relative to the total weight of all the reactants of the copolymers, added with the polyamide precursors during the synthesis of the copolymers.
- PEBA No. 11, 12, 13 and 14 were prepared from PEG diamine blocks.
- the polyamide block comprises 70 mole% of PA 6 and 30 mole% of PA 1 1 and therefore has an average carbon content of the repeat units of 7.5.
- PEBA No. 15 is a copolymer according to the invention, bs PEBA No. 1 1 to 14 correspond to comparative examples.
- Water uptake is measured according to ISO 62: 2008.
- copolymers comprising a polyamide block having an average carbon content of the repeat units equal to 6 (PEBA No. 11 to 14) exhibit a very high water uptake, and, consequently, a breaking stress and a very low elongation at break when saturated with water. A membrane formed from these copolymers will therefore have low durability.
- PEBA No. 15 which has a polyamide block with an average carbon content of the repeat units equal to 7.5, in the water-saturated state exhibits a high elongation at break and a stress at break. sufficient.
- copolymers according to the invention have both good permeability to water vapor and to carbon dioxide, good selectivity P C02 / P O2 and good mechanical properties, in the dry state and in the wet state. .
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FR1907933A FR3098816B1 (fr) | 2019-07-15 | 2019-07-15 | Copolymères à blocs rigides polyamides et blocs souples comprenant du polyéthylène glycol |
PCT/FR2020/051272 WO2021009463A1 (fr) | 2019-07-15 | 2020-07-15 | Copolymères à blocs rigides polyamides et blocs souples comprenant du polyéthylène glycol |
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EP (1) | EP3999213A1 (fr) |
JP (1) | JP2022540902A (fr) |
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US5652326A (en) | 1993-03-03 | 1997-07-29 | Sanyo Chemical Industries, Ltd. | Polyetheresteramide and antistatic resin composition |
DE4410921C2 (de) * | 1994-03-29 | 1996-12-19 | Atochem Elf Deutschland | Polymermischung und deren Verwendung |
US6590065B1 (en) * | 2001-12-10 | 2003-07-08 | E. I. Du Pont De Nemours And Company | Polytrimethylene ether ester amide and use thereof |
FR2846332B1 (fr) | 2002-10-23 | 2004-12-03 | Atofina | Copolymeres transparents a blocs polyamides et blocs polyethers |
JP4193588B2 (ja) | 2003-05-26 | 2008-12-10 | 宇部興産株式会社 | ポリアミド系エラストマー |
US7056975B2 (en) | 2003-05-27 | 2006-06-06 | Ube Industries, Ltd. | Thermoplastic resin composition having improved resistance to hydrolysis |
JP4161802B2 (ja) | 2003-05-27 | 2008-10-08 | 宇部興産株式会社 | ポリアミド組成物 |
SE532941C2 (sv) * | 2008-09-15 | 2010-05-18 | Phasein Ab | Gasprovtagningsledning för andningsgaser |
FR2941700B1 (fr) | 2009-02-02 | 2012-03-16 | Arkema France | Procede de synthese d'un alliage de copolymere a blocs presentant des proprietes antistatiques ameliorees. |
FR3030535B1 (fr) * | 2014-12-19 | 2018-07-27 | Arkema France | Copolymere comprenant au moins trois blocs : blocs polyamides, blocs peg et autres blocs |
US10525406B2 (en) | 2017-05-30 | 2020-01-07 | Saudi Arabian Oil Company | Polymer blended membranes for sour gas separation |
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KR20220034875A (ko) | 2022-03-18 |
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