GB1414924A - Method of preparing thermostable block-copolymers - Google Patents
Method of preparing thermostable block-copolymersInfo
- Publication number
- GB1414924A GB1414924A GB2241273A GB2241273A GB1414924A GB 1414924 A GB1414924 A GB 1414924A GB 2241273 A GB2241273 A GB 2241273A GB 2241273 A GB2241273 A GB 2241273A GB 1414924 A GB1414924 A GB 1414924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- block
- effected
- styrene
- dione
- diene
- 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.)
- Expired
Links
- 229920001400 block copolymer Polymers 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 4
- 150000001993 dienes Chemical class 0.000 abstract 3
- 239000000178 monomer Substances 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 abstract 2
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 238000012661 block copolymerization Methods 0.000 abstract 1
- 239000003999 initiator Substances 0.000 abstract 1
- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 238000004448 titration Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
- C08F297/04—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
Abstract
1414924 Alpha methyl styrene block copolymerization VORONEZHSKY FILIAL VSESOJUZNOGO NAUCHNO-ISSLEDOVATELSKOGO INSTITUTA SINTETICHESKOGO KAUCHUKA IMENIAKADEMIKA 10 May 1973 22412/73 Heading C3P Thermostable block copolymers of the formula A, B, C, where A is a polyalphamethylstyrene block, B is a polyconjugated dione block and C is a polystyrene block, are obtained by a threestage sequential process effected in the presence of sec.-butyl lithium initiator, the initial polymerization of alphamethylstyrene being effected in the monomer itself or in a hydrocarbon solvent at 0‹ to 40‹ C., the subsequent stages forming the B and C blocks being effected in a hydrocarbon solvent at 40‹ to 80‹ C. The latter two stages may be carried out by sequential addition of the diene and later the styrene or by addition of a mixture of the monomers, with the diene being polymerized at 40‹ to 60‹ C. and the styrene subsequently at 60‹ to 80‹ C. The dienes are suitably butadiene or isoprene. The microstructure of the dione portions of the products is predominantly 1,4- with, in examples, about 8 to 12% 1,2-units and approximately equal amounts of cis- and trans-1,4-units. The monomers and solvents are desirably purified, e.g. by titration with the butyl lithium or with dilithiopolydienes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2241273A GB1414924A (en) | 1973-05-10 | 1973-05-10 | Method of preparing thermostable block-copolymers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2241273A GB1414924A (en) | 1973-05-10 | 1973-05-10 | Method of preparing thermostable block-copolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1414924A true GB1414924A (en) | 1975-11-19 |
Family
ID=10178956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2241273A Expired GB1414924A (en) | 1973-05-10 | 1973-05-10 | Method of preparing thermostable block-copolymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1414924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0083168A3 (en) * | 1981-12-28 | 1983-11-02 | Mobil Oil Corporation | P-methylstyrene-conjugated diene-styrene block copolymers and blends thereof with polystyrene, poly(p-methylstyrene) and copolymers thereof |
| EP0289917A3 (en) * | 1987-05-02 | 1991-01-23 | BASF Aktiengesellschaft | Butadiene-styrene block copolymers having an asymmetric construction, their preparation and use in moulding masses |
-
1973
- 1973-05-10 GB GB2241273A patent/GB1414924A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0083168A3 (en) * | 1981-12-28 | 1983-11-02 | Mobil Oil Corporation | P-methylstyrene-conjugated diene-styrene block copolymers and blends thereof with polystyrene, poly(p-methylstyrene) and copolymers thereof |
| EP0289917A3 (en) * | 1987-05-02 | 1991-01-23 | BASF Aktiengesellschaft | Butadiene-styrene block copolymers having an asymmetric construction, their preparation and use in moulding masses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |