GB771926A - Graft copolymers - Google Patents
Graft copolymersInfo
- Publication number
- GB771926A GB771926A GB1734854A GB1734854A GB771926A GB 771926 A GB771926 A GB 771926A GB 1734854 A GB1734854 A GB 1734854A GB 1734854 A GB1734854 A GB 1734854A GB 771926 A GB771926 A GB 771926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyclic ether
- basic catalyst
- oxide
- carboxylic acid
- polystyrene
- 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
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
- C08F8/00—Chemical modification by after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (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)
- Adhesives Or Adhesive Processes (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Graft copolymers are prepared by heating a polymerizable cyclic ether in a substantially anhydrous medium containing a hydroxyalkylated polystyrene with an alkali metal oxide, hydroxide, hydride or alkoxide catalyst. The cyclic ether, which must be capable of polymerizing by opening the ring under the influence of a basic catalyst, may be ethylene oxide, mono-substituted derivatives, e.g. propylene oxide, 1,2-epoxybutane, 1,2-epoxybutene and trimethylene oxide and less reactive compounds such as phenylethylene oxide. The hydroxyalkylated polystyrenes contain alcoholic hydroxyl groups obtained by forming b or g -hydroxyl-alkyl esters from the free carboxylic acid groups in a copolymer of styrene and an unsaturated carboxylic acid, e.g. acrylic, methacrylic, cinnamic and maleic acids consisting of chains of 10 to 100 polymerized styrene units per free carboxylic acid and preferably prepared by reacting the copolymer in an anhydrous solvent with one to three molar proportions of cyclic ether with a basic catalyst, e.g. pyridine, as described in Specification 771,569. The graft copolymers are prepared at elevated temperature, preferably 100-160 DEG C., and pressure, in solvents such as benzene or toluene, and the products recovered by distilling off the solvent and extracting with water. In a preferred preparation formation of the hydroxy-alkylated polystyrene and the graft copolymerization take place in successive stages using first a weakly basic catalyst, e.g. a tertiary amine, and then adding a strongly basic catalyst with the polymerizable cyclic ether present in at least a fourfold excess. Alternatively the two catalysts may be used in admixture. The products may be used as coatings, laminate adhesives, antistatic agents for polystyrene, applied to the surface or incorporated in the moulding, or may be cross-linked with di-isocyanates, e.g. 2,4-tolylene diisocyanate, to give elastic products suitable for foils and films.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1734854A GB771926A (en) | 1954-06-12 | 1954-06-12 | Graft copolymers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1734854A GB771926A (en) | 1954-06-12 | 1954-06-12 | Graft copolymers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB771926A true GB771926A (en) | 1957-04-10 |
Family
ID=10093606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1734854A Expired GB771926A (en) | 1954-06-12 | 1954-06-12 | Graft copolymers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB771926A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997027226A2 (en) * | 1996-01-23 | 1997-07-31 | Argonaut Technologies, Inc. | Highly functionalized polyethylene glycol grafted polystyrene supports |
EP1302519A1 (en) * | 2001-10-10 | 2003-04-16 | Rensselaer Polytechnic Institute | Photopolymerizable compositions |
-
1954
- 1954-06-12 GB GB1734854A patent/GB771926A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997027226A2 (en) * | 1996-01-23 | 1997-07-31 | Argonaut Technologies, Inc. | Highly functionalized polyethylene glycol grafted polystyrene supports |
WO1997027226A3 (en) * | 1996-01-23 | 1997-10-16 | Argonaut Technologies Inc | Highly functionalized polyethylene glycol grafted polystyrene supports |
GB2325234A (en) * | 1996-01-23 | 1998-11-18 | Argonaut Technologies Inc | Highly functionalized polyethylene glycol grafted polystyrene supports |
GB2325234B (en) * | 1996-01-23 | 2000-03-01 | Argonaut Technologies Inc | Graft copolymers formed via a 1,3-dioxyprop-2-yl linkage and their uses |
EP1302519A1 (en) * | 2001-10-10 | 2003-04-16 | Rensselaer Polytechnic Institute | Photopolymerizable compositions |
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