GB1020127A - Process for polymerising acrylonitrile - Google Patents

Process for polymerising acrylonitrile

Info

Publication number
GB1020127A
GB1020127A GB31207/64A GB3120764A GB1020127A GB 1020127 A GB1020127 A GB 1020127A GB 31207/64 A GB31207/64 A GB 31207/64A GB 3120764 A GB3120764 A GB 3120764A GB 1020127 A GB1020127 A GB 1020127A
Authority
GB
United Kingdom
Prior art keywords
monomer
amount
acrylonitrile
polymerization
solution
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
GB31207/64A
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.)
Union Rheinische Braunkohlen Kraftstoff AG
Original Assignee
Union Rheinische Braunkohlen Kraftstoff AG
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 Union Rheinische Braunkohlen Kraftstoff AG filed Critical Union Rheinische Braunkohlen Kraftstoff AG
Publication of GB1020127A publication Critical patent/GB1020127A/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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42—Nitriles
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/36—Polymerisation in solid state
    • 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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42—Nitriles
    • C08F20/44—Acrylonitrile

Landscapes

  • 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)

Abstract

Acrylonitrile, or mixtures thereof with up to 20% of copolymerizable monomers, is polymerized by adding to a solution of monomer in dimethyl sulphoxide an amount of a water-soluble peroxy compound which does not exceed 0.5% of the weight of the monomer and is such that it is practically consumed at the end of polymerization or on reaching the desired viscosity of the polymer solution, adding a polymerization regulator in an amount that exceeds the amount of catalyst but is not more than double it, initiating polymerization by warming the monomer solution to temperatures above 50 DEG C. and allowing the temperature to rise by at least 5 DEG C. during the course of the reaction. Catalysts specified are hydrogen peroxide and alkali metal and ammonium persulphates, perborates and percarbonates. The catalysts may be activated, e.g. by sodium metabisulphite. Regulators specified are butyl, dodecyl and 3-ethoxypropyl mercaptans, thioacetic acid, thioglycolates, carbon tetrachloride and tetrabromide, chlorotribromomethane, ethyl tribromoacetate phenyl phosphine and diphenyl silane. The examples describe the preparation of polyacrylonitrile and copolymers of acrylonitrile with methyl acrylate and methacrylate.
GB31207/64A 1963-07-30 1964-08-04 Process for polymerising acrylonitrile Expired GB1020127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU0010006 1963-07-30

Publications (1)

Publication Number Publication Date
GB1020127A true GB1020127A (en) 1966-02-16

Family

ID=7567030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31207/64A Expired GB1020127A (en) 1963-07-30 1964-08-04 Process for polymerising acrylonitrile

Country Status (3)

Country Link
BE (2) BE650683A (en)
GB (1) GB1020127A (en)
NL (2) NL6407657A (en)

Also Published As

Publication number Publication date
NL284096A (en)
BE623220A (en)
NL6407657A (en) 1965-02-01
BE650683A (en) 1964-11-16

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