CN106187714A - 烷基苯甲醇聚氧乙烯醚及其制备方法 - Google Patents
烷基苯甲醇聚氧乙烯醚及其制备方法 Download PDFInfo
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 229920000056 polyoxyethylene ether Polymers 0.000 title claims abstract description 33
- 229940051841 polyoxyethylene ether Drugs 0.000 title claims abstract description 33
- 150000004996 alkyl benzenes Chemical class 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 125000001165 hydrophobic group Chemical group 0.000 claims abstract description 6
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 42
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 14
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 14
- 238000010992 reflux Methods 0.000 claims description 12
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- JECYNCQXXKQDJN-UHFFFAOYSA-N 2-(2-methylhexan-2-yloxymethyl)oxirane Chemical compound CCCCC(C)(C)OCC1CO1 JECYNCQXXKQDJN-UHFFFAOYSA-N 0.000 claims description 7
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 7
- 230000006837 decompression Effects 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000004821 distillation Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000012044 organic layer Substances 0.000 claims description 7
- 229920002866 paraformaldehyde Polymers 0.000 claims description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- -1 polyoxyethylene Polymers 0.000 abstract description 40
- 239000003995 emulsifying agent Substances 0.000 abstract description 20
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract description 17
- 239000003599 detergent Substances 0.000 abstract description 7
- 239000000839 emulsion Substances 0.000 abstract description 7
- 230000001804 emulsifying effect Effects 0.000 abstract description 5
- 239000000575 pesticide Substances 0.000 abstract description 4
- 239000004753 textile Substances 0.000 abstract description 4
- 239000004902 Softening Agent Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000010779 crude oil Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 238000007639 printing Methods 0.000 abstract description 3
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 3
- 239000005061 synthetic rubber Substances 0.000 abstract description 3
- 238000009941 weaving Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000002270 dispersing agent Substances 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000003292 glue Substances 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000000976 ink Substances 0.000 abstract description 2
- MSIKYJMPGITHCY-UHFFFAOYSA-N CO.C(CCCCCCCC)C1=CC=CC=C1 Chemical compound CO.C(CCCCCCCC)C1=CC=CC=C1 MSIKYJMPGITHCY-UHFFFAOYSA-N 0.000 description 27
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 5
- 239000003377 acid catalyst Substances 0.000 description 5
- 150000001335 aliphatic alkanes Chemical class 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- LIXVMPBOGDCSRM-UHFFFAOYSA-N nonylbenzene Chemical compound CCCCCCCCCC1=CC=CC=C1 LIXVMPBOGDCSRM-UHFFFAOYSA-N 0.000 description 5
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- OOCCDEMITAIZTP-QPJJXVBHSA-N (E)-cinnamyl alcohol Chemical compound OC\C=C\C1=CC=CC=C1 OOCCDEMITAIZTP-QPJJXVBHSA-N 0.000 description 1
- JKTAIYGNOFSMCE-UHFFFAOYSA-N 2,3-di(nonyl)phenol Chemical compound CCCCCCCCCC1=CC=CC(O)=C1CCCCCCCCC JKTAIYGNOFSMCE-UHFFFAOYSA-N 0.000 description 1
- CYEJMVLDXAUOPN-UHFFFAOYSA-N 2-dodecylphenol Chemical compound CCCCCCCCCCCCC1=CC=CC=C1O CYEJMVLDXAUOPN-UHFFFAOYSA-N 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 241001597008 Nomeidae Species 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- OOCCDEMITAIZTP-UHFFFAOYSA-N allylic benzylic alcohol Natural products OCC=CC1=CC=CC=C1 OOCCDEMITAIZTP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 150000002012 dioxanes Chemical class 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 229940011871 estrogen Drugs 0.000 description 1
- 239000000262 estrogen Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- QZXQKYMXZRGKLB-UHFFFAOYSA-N n,n'-bis(2-phenylethyl)oxamide Chemical compound C=1C=CC=CC=1CCNC(=O)C(=O)NCCC1=CC=CC=C1 QZXQKYMXZRGKLB-UHFFFAOYSA-N 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/02—Preparation of ethers from oxiranes
- C07C41/03—Preparation of ethers from oxiranes by reaction of oxirane rings with hydroxy groups
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
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- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
- C07C29/12—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of esters of mineral acids
- C07C29/124—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of esters of mineral acids of halides
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
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- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
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- C08G65/2612—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aromatic or arylaliphatic hydroxyl groups
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Abstract
本申请公开了一种烷基苯甲醇聚氧乙烯醚及其制备方法,烷基苯甲醇聚氧乙烯醚的分子结构包括疏水基团和亲水基团,分子结构式如下所示:
Description
技术领域
本公开一般涉及高分子助剂合成技术领域,具体涉及乳化剂,尤其涉及烷基苯甲醇聚氧乙烯醚及其制备方法。
背景技术
含有烷基酚聚氧乙烯醚类化合物(简称APEO)结构的乳化剂具有良好的润湿、渗透、乳化、分散、增溶和洗涤作用,主要用作农药上的乳化剂,纺织助剂、消泡剂、洗涤剂、分散剂、乳化剂、柔软剂、染色助剂、纤维油剂、原油破乳剂等,广泛应用于洗涤剂、个人护理的日用品、纺织、造纸、石油、冶金、农药、制药、印刷、合成橡胶、水性乳液、塑料等行业。APEO中包括壬基酚聚氧乙烯醚(简称NPEO)占80~85%,辛基酚聚氧乙烯醚(简称OPEO)占15%以上,十二烷基酚聚氧乙烯醚(简称DPEO)和二壬基酚聚氧乙烯醚(简称DNPEO)各占1%。全球乳化剂的产量(按100%有效含量计算)阴离子360万吨,非离子365万吨,两性18万吨,阳离子76万吨,其中烷基酚聚氧乙烯醚年耗量为达100万吨以上,其中80%以上为壬基酚聚氧乙烯醚。
APEO对生态环境的危害已经被广泛的研究和论证:对哺乳动物和水生生物有生物毒性及致癌性;生物降解性缓慢,其生物降解率不到9%;具有类似雌性激素作用,能危害人体正常的激素分泌的化学物质,即“雌性效应”和生理畸变;在生产加工过程中产生的副产品二恶烷是严重的致癌物质。由于以上所表现出的问题,欧美日一些国家在1976年前就制定了法规限制生产和使用APEO,如欧盟在1998年就在个人消费的洗涤剂、清洗剂中限制使用APEO,2005年在服装及纺织品中限制使用APEO。中国环保标准HJ2537—2014《环境标志产品技术要求水性涂料》中明确规定:不得人为添加的物质要求,包括不含APEO等七类物质。对于APEO的环保和禁用问题,普遍最佳的解决方案是对不同的用途采用不同的替代产品,这些替代产品包括AEO脂肪醇聚氧乙烯醚、异构醇聚氧乙烯醚、AES、SAS、AOS、APG、脂肪醇聚氧乙烯醚磷酸酯、琥珀酸酯钠盐等或其复配来替代APEO产品。
目前国内的无APEO技术主要集中在脂肪醇聚氧乙烯醚及其衍生物,代表产品有月桂醇聚氧乙烯醚、月桂醇聚氧乙烯醚硫酸铵、月桂醇聚氧乙烯醚磷酸铵、异构十三醇聚氧乙烯醚、异构十三醇聚氧乙烯醚硫酸铵、异构十三醇聚氧乙烯醚磷酸铵、月桂醇或异构十三醇聚氧乙烯醚琥珀酸二钠盐等。虽然脂肪醇类的聚氧乙烯醚系乳化剂克服了烷基酚的缺点,但其乳化能力、对聚合体的胶体聚合影响与烷基酚的相差较大,乳液的性能与烷基酚系的乳液比也相差较大;这是因为在脂肪醇聚氧乙烯醚中脂肪醇的碳数大多在12以上,结晶性强,临界胶束浓度提高,用量提高,乳化能力下降,且由于用量提高,乳液膜的耐水性有所下降;另一方面,由于脂肪醇聚氧乙烯醚的润湿性能不如烷基酚聚氧乙烯醚,用于乳胶漆后发现涂膜的展色性大大降低。所以,开发一种类似于烷基酚这种带苯环结构又不具有烷基酚毒性的乳化剂来替代烷基酚结构的乳化剂已经成为本领域技术人员的研究热点与难点。
发明内容
鉴于现有技术中的上述缺陷或不足,期望提供一种无APEO的烷基苯甲醇聚氧乙烯醚。
第一方面,本发明提供一种烷基苯甲醇聚氧乙烯醚,烷基苯甲醇聚氧乙烯醚的分子结构包括疏水基团和亲水基团,分子结构式如下所示:
其中,分子式中的R为烷基,n=3~50;进一步的n=4~40。
第二方面,本发明还提供一种烷基苯甲醇聚氧乙烯醚的制备方法,包括以下步骤:
a、在反应釜中,加入烷基苯、多聚甲醛、溴化钠,在酸性催化剂作用下于70℃反应6~8h,然后倒入冰水中,依次用水、饱和碳酸氢钠溶液洗涤有机层,减压蒸馏得到对烷基溴苄;
b、在反应釜中,加入对烷基溴苄、甲醇、氢氧化钾,升温到回流状态,在此温度下保持回流反应2h,得到对烷基苯甲醇;
c、在反应釜中加入对烷基苯甲醇、催化剂氢氧化钾,然后升温并真空脱水;脱水完毕,通入氮气置换后,按对烷基苯甲醇/环氧乙烷的摩尔比1:(3~50)缓慢通入环氧乙烷,控制反应温度在120~140℃、压力小于0.2mPa;
d、检测当反应达到所要求的聚合度后停止通入环氧乙烷,反应进入终止阶段,冷却降温至120℃,加入乙酸中和;然后加入双氧水脱色;降温至80℃,过滤包装,得到烷基苯甲醇聚氧乙烯醚。
本发明提供的烷基苯甲醇聚氧乙烯醚不含APEO,具有良好的润湿、渗透、乳化、分散、增溶和洗涤作用,可用作乳化剂,纺织助剂、洗涤剂、分散剂、柔软剂、原油破乳剂等,完全替代烷基酚聚氧乙烯醚乳化剂,广泛应用于洗涤剂、个人护理品、纺织、造纸、石油、农药、制药、印刷、合成橡胶、水性乳液、涂料、油墨、胶水、塑料等行业。
具体实施方式
下面结合实施例对本申请作进一步的详细说明。可以理解的是,此处所描述的具体实施例仅仅用于解释相关发明,而非对该发明的限定。
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
本发明提供的烷基苯甲醇聚氧乙烯醚的合成机理如下式所示:
其中,分子式中的R为烷基,n=3~50。
烷基苯甲醇聚氧乙烯醚可作为一种新型无APEO的阴非离子型乳化剂。
下面通过以下实施例进行阐述本发明提供的烷基苯甲醇聚氧乙烯醚,具体如下:
实施例1
一种无APEO的壬基苯甲醇聚氧乙烯醚-4乳化剂,其制备方法如下:
步骤a、在反应釜中,加入壬基苯、多聚甲醛、溴化钠,在酸催化剂作用下于70℃反应6~8h,然后倒入冰水中,依次用水、饱和碳酸氢钠溶液洗涤有机层,减压蒸馏得到对壬基溴苄;
步骤b、在反应釜中,加入对壬基溴苄、甲醇、氢氧化钾,升温到回流状态,在此温度下保持回流反应2h,得到对壬基苯甲醇;
步骤c、在反应釜中投入对壬基苯甲醇、催化剂氢氧化钾,然后升温并真空脱水;脱水完毕,通入氮气置换后,按对壬基苯甲醇/环氧乙烷的摩尔比1/(4~5)缓慢通入环氧乙烷,控制反应温度在120~140℃、压力小于0.2MPa;
步骤d、检测,当反应达到所要求的聚合度(EO)≈4时,停止通入环氧乙烷,反应进入终止阶段,冷却降温至120℃,加入乙酸中和;然后加入双氧水脱色;降温至80℃,过滤包装,得到壬基苯甲醇聚氧乙烯醚-4。
实施例2
一种无APEO的壬基苯甲醇聚氧乙烯醚-10乳化剂,其制备方法如下:
步骤a、在反应釜中,加入壬基苯、多聚甲醛、溴化钠,在酸催化剂作用下于70℃反应6~8h,然后倒入冰水中,依次用水、饱和碳酸氢钠溶液洗涤有机层,减压蒸馏得到对壬基溴苄;
步骤b、在反应釜中,加入对壬基溴苄、甲醇、氢氧化钾,升温到回流状态,在此温度下保持回流反应2h,得到对壬基苯甲醇;
步骤c、在反应釜中投入对壬基苯甲醇、催化剂氢氧化钾,然后升温并真空脱水;脱水完毕,通入氮气置换后,按对壬基苯甲醇/环氧乙烷的摩尔比1/(10~11)缓慢通入环氧乙烷,控制反应温度在120~140℃、压力小于0.2MPa;
步骤d、检测,当反应达到所要求的聚合度(EO)≈10时,停止通入环氧乙烷,反应进入终止阶段,冷却降温至120℃,加入乙酸中和;然后加入双氧水脱色;降温至80℃,过滤包装,得到壬基苯甲醇聚氧乙烯醚-10。
实施例3
一种无APEO的壬基苯甲醇聚氧乙烯醚-15乳化剂,其制备方法如下:
步骤a、在反应釜中,加入壬基苯、多聚甲醛、溴化钠,在酸催化剂作用下于70℃反应6~8h,然后倒入冰水中,依次用水、饱和碳酸氢钠溶液洗涤有机层,减压蒸馏得到对壬基溴苄;
步骤b、在反应釜中,加入对壬基溴苄、甲醇、氢氧化钾,升温到回流状态,在此温度下保持回流反应2h,得到对壬基苯甲醇;
步骤c、在反应釜中投入对壬基苯甲醇、催化剂氢氧化钾,然后升温并真空脱水;脱水完毕,通入氮气置换后,按对壬基苯甲醇/环氧乙烷的摩尔比1/(15~17)缓慢通入环氧乙烷,控制反应温度在120~140℃、压力小于0.2MPa;
步骤d、检测,当反应达到所要求的聚合度(EO)≈15时,停止通入环氧乙烷,反应进入终止阶段,冷却降温至120℃,加入乙酸中和;然后加入双氧水脱色;降温至80℃,过滤包装,得到壬基苯甲醇聚氧乙烯醚-15。
实施例4
一种无APEO的壬基苯甲醇聚氧乙烯醚-20乳化剂,其制备方法如下:
步骤a、在反应釜中,加入壬基苯、多聚甲醛、溴化钠,在酸催化剂作用下于70℃反应6~8h,然后倒入冰水中,依次用水、饱和碳酸氢钠溶液洗涤有机层,减压蒸馏得到对壬基溴苄;
步骤b、在反应釜中,加入对壬基溴苄、甲醇、氢氧化钾,升温到回流状态,在此温度下保持回流反应2h,得到对壬基苯甲醇;
步骤c、在反应釜中投入对壬基苯甲醇、催化剂氢氧化钾,然后升温并真空脱水;脱水完毕,通入氮气置换后,按对壬基苯甲醇/环氧乙烷的摩尔比1/(20~22)缓慢通入环氧乙烷,控制反应器温度在120~140℃、压力小于0.2MPa;
步骤d、检测,当反应达到所要求的聚合度(EO)≈20时,停止通入环氧乙烷,反应进入终止阶段,冷却降温至120℃,加入乙酸中和;然后加入双氧水脱色;降温至80℃,过滤包装,得到壬基苯甲醇聚氧乙烯醚-20。
实施例5
一种无APEO的壬基苯甲醇聚氧乙烯醚-40乳化剂,其制备方法如下:
步骤a、在反应釜中,加入壬基苯、多聚甲醛、溴化钠,在酸催化剂作用下于70℃反应6~8h,然后倒入冰水中,依次用水、饱和碳酸氢钠溶液洗涤有机层,减压蒸馏得到对壬基溴苄,待用;
步骤b、在反应釜中,加入对壬基溴苄、甲醇、氢氧化钾,升温到回流状态,在此温度下保持回流反应2h,得到对壬基苯甲醇,待用;
步骤c、在反应釜中投入对壬基苯甲醇、催化剂氢氧化钾,然后升温并真空脱水;脱水完毕,通入氮气置换后,按对壬基苯甲醇/环氧乙烷的摩尔比1/(40~43)缓慢通入环氧乙烷,控制反应器温度在120~140℃、压力小于0.2MPa;
步骤d、检测,当反应达到所要求的聚合度(EO)≈40时,停止通入环氧乙烷,反应进入终止阶段,冷却降温至120℃,加入乙酸中和;然后加入双氧水脱色;降温至80℃,过滤包装,得到壬基苯甲醇聚氧乙烯醚-40。
按照相关标准,对本发明实施例中制得的壬基苯甲醇聚氧乙烯醚乳化剂的性能进行检测,测试结果如表1所示。
表1:壬基苯甲醇聚氧乙烯醚乳化剂技术指标
其中HLB为亲水疏水平衡值。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解,本申请中所涉及的发明范围,并不限于上述技术特征的特定组合而成的技术方案,同时也应涵盖在不脱离所述发明构思的情况下,由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。
Claims (5)
1.一种烷基苯甲醇聚氧乙烯醚,其特征在于,所述烷基苯甲醇聚氧乙烯醚的分子结构包括疏水基团和亲水基团,分子结构式如下所示:
其中,分子式中的R为烷基,n=3~50。
2.根据权利要求1所述的烷基苯甲醇聚氧乙烯醚,其特征在于,所述n=4~40。
3.根据权利要求1所述的烷基苯甲醇聚氧乙烯醚,其特征在于,所述疏水基团为分子式中的烷基苯甲醇链段,所述亲水基团为分子式中聚氧乙烯醚链段;所述的疏水基团与亲水基团的摩尔比为1:(3~50)。
4.根据权利要求3所述的烷基苯甲醇聚氧乙烯醚,其特征在于,所述的疏水基团与亲水基团的摩尔比为1:(4~40)。
5.一种如权利要求1-4任意一项所述的烷基苯甲醇聚氧乙烯醚的制备方法,其特征在于,包括以下步骤:
a、在反应釜中,加入烷基苯、多聚甲醛、溴化钠,在酸性催化剂作用下于70℃反应6~8h,然后倒入冰水中,依次用水、饱和碳酸氢钠溶液洗涤有机层,减压蒸馏得到对烷基溴苄;
b、在反应釜中,加入对烷基溴苄、甲醇、氢氧化钾,升温到回流状态,在此温度下保持回流反应2h,得到对烷基苯甲醇;
c、在反应釜中加入对烷基苯甲醇、催化剂氢氧化钾,然后升温并真空脱水;脱水完毕,通入氮气置换后,按对烷基苯甲醇/环氧乙烷的摩尔比1:(3~50)缓慢通入环氧乙烷,控制反应温度在120~140℃、压力小于0.2mPa;
d、检测当反应达到所要求的聚合度后停止通入环氧乙烷,反应进入终止阶段,冷却降温至120℃,加入乙酸中和;然后加入双氧水脱色;降温至80℃,过滤包装,得到烷基苯甲醇聚氧乙烯醚。
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