GB771926A - Graft copolymers - Google Patents

Graft copolymers

Info

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
Application number
GB1734854A
Inventor
Basil Alexander Ripley-Duggan
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers 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 Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB1734854A priority Critical patent/GB771926A/en
Publication of GB771926A publication Critical patent/GB771926A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical 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.
GB1734854A 1954-06-12 1954-06-12 Graft copolymers Expired GB771926A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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