GB2010292A - Three block copolymers - Google Patents
Three block copolymersInfo
- Publication number
- GB2010292A GB2010292A GB7848344A GB7848344A GB2010292A GB 2010292 A GB2010292 A GB 2010292A GB 7848344 A GB7848344 A GB 7848344A GB 7848344 A GB7848344 A GB 7848344A GB 2010292 A GB2010292 A GB 2010292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- block
- copolymers
- polystyrene
- monomer
- plastomeric
- 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.)
- Granted
Links
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
- C08F297/06—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 coordination type
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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerization Catalysts (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Three-block copolymers of the type ABA and ABC are disclosed in which A and C are plastomeric polymeric blocks and B is an elastomeric saturated polymeric block. The copolymers may be produced by first polymerizing the monomer for block A using a Lewis Acid catalyst and a catalytic amount of isobutene in such a way to keep alive the active centres in the chain ends for a time sufficient to permit the addition of the second monomer to produce block B, whereafter, with the aid of a particular catalyst preferably an alkyl aluminium halide, the growth of the third block A, or C, can be carried out. The copolymers e.g. polystyrene - polyisobutene - polystyrene, are resistant to oxidation, have elastomeric properties under certain conditions and have plastomeric properties under other conditions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7848344A GB2010292B (en) | 1978-12-13 | 1978-12-13 | Three-block copolymers and process for their production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7848344A GB2010292B (en) | 1978-12-13 | 1978-12-13 | Three-block copolymers and process for their production |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2010292A true GB2010292A (en) | 1979-06-27 |
GB2010292B GB2010292B (en) | 1982-04-28 |
Family
ID=10501701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7848344A Expired GB2010292B (en) | 1978-12-13 | 1978-12-13 | Three-block copolymers and process for their production |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2010292B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009135877A1 (en) * | 2008-05-07 | 2009-11-12 | Basf Se | Diblock copolymer-substituted succinic acid derivatives |
-
1978
- 1978-12-13 GB GB7848344A patent/GB2010292B/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009135877A1 (en) * | 2008-05-07 | 2009-11-12 | Basf Se | Diblock copolymer-substituted succinic acid derivatives |
Also Published As
Publication number | Publication date |
---|---|
GB2010292B (en) | 1982-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |