GB789128A - Improvements in the production of copolymers - Google Patents

Improvements in the production of copolymers

Info

Publication number
GB789128A
GB789128A GB1229655A GB1229655A GB789128A GB 789128 A GB789128 A GB 789128A GB 1229655 A GB1229655 A GB 1229655A GB 1229655 A GB1229655 A GB 1229655A GB 789128 A GB789128 A GB 789128A
Authority
GB
United Kingdom
Prior art keywords
ketone
copolymer
monomer
bis
chloroethyl
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
Application number
GB1229655A
Inventor
John Robert Millar
Ernest Malcolm Wilkinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Permutit Co Ltd
Original Assignee
Permutit Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Permutit Co Ltd filed Critical Permutit Co Ltd
Priority to GB1229655A priority Critical patent/GB789128A/en
Priority to DEP16145A priority patent/DE1031967B/en
Publication of GB789128A publication Critical patent/GB789128A/en
Expired legal-status Critical Current

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
    • C08F16/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
    • C08F16/36—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by a ketonic radical

Abstract

A copolymer of a ketone containing two polymerizable double bonds each forming part of a conjugated system with the carbonyl group and a monomer containing one polymerizable double bond is made by dehydrohalogenating a bis-(2-haloalkyl) ketone with a solution of a salt of weak acid in the presence of the monomer and polymerizing the resulting mixture with a polymerization catalyst that is present during at least the latter stages of the dehydrohalogenation. The monomer may contain an ion exchange group. The polymerization may be carried out in bulk, aqueous emulsion, or suspension. The ketone may be the divinyl compound obtained from bis-(2-chloroethyl) ketone or vinyl isopropenyl ketone obtained from 2-chloroethyl, 2-chloroisopropyl ketone. The monomer may be methacrylic acid, methyl methacrylate, or styrene. Cation-exchange groups may be introduced into the copolymer by after-treatment with sulphonic acid-containing compounds and anion-exchange groups by introducing haloalkyl groups into the copolymer with subsequent amination. The salt of a weak acid may be sodium acetate, formate, or citrate. Catalysts mentioned are azo-bis-isobutyronitrile and ammonium persulphate. The emulsifier may be polyvinyl alcohol. The copolymer may be in the form of beads or granules.
GB1229655A 1955-04-28 1955-04-28 Improvements in the production of copolymers Expired GB789128A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1229655A GB789128A (en) 1955-04-28 1955-04-28 Improvements in the production of copolymers
DEP16145A DE1031967B (en) 1955-04-28 1956-04-26 Process for the production of ion exchangers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1229655A GB789128A (en) 1955-04-28 1955-04-28 Improvements in the production of copolymers

Publications (1)

Publication Number Publication Date
GB789128A true GB789128A (en) 1958-01-15

Family

ID=10001924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229655A Expired GB789128A (en) 1955-04-28 1955-04-28 Improvements in the production of copolymers

Country Status (2)

Country Link
DE (1) DE1031967B (en)
GB (1) GB789128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426436A2 (en) * 1989-10-31 1991-05-08 The Dow Chemical Company Preparation of ketone containing photodegradable polymers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426436A2 (en) * 1989-10-31 1991-05-08 The Dow Chemical Company Preparation of ketone containing photodegradable polymers
EP0426436A3 (en) * 1989-10-31 1992-01-22 The Dow Chemical Company Preparation of ketone containing photodegradable polymers

Also Published As

Publication number Publication date
DE1031967B (en) 1958-06-12

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