GB1348420A - Acrylonitrile polymers - Google Patents

Acrylonitrile polymers

Info

Publication number
GB1348420A
GB1348420A GB2941271A GB2941271A GB1348420A GB 1348420 A GB1348420 A GB 1348420A GB 2941271 A GB2941271 A GB 2941271A GB 2941271 A GB2941271 A GB 2941271A GB 1348420 A GB1348420 A GB 1348420A
Authority
GB
United Kingdom
Prior art keywords
solvent
polymers
carbonate
weight
glycol carbonate
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
GB2941271A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1348420A publication Critical patent/GB1348420A/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
    • C08F20/44—Acrylonitrile
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1348420 Acrylonitrile polymers BAYER AG 23 June 1971 [1 July 1970] 29412/71 Heading C3P Novel acrylonitrile polymers contain more than 28% by weight of crystalline component(s) (as determined by X-ray photography in accordance with Hendus' method) and have a K value greater than 80 and a narrow molecular weight distribution with an inhomogeneity factor (according to Vollmert) of less than 0À2. The polymers are obtained by polymerizing acrylonitrile monomer optionally containing up to 2% by weight of a comonomer in a solvent comprising at least 50% by weight of ethylene glycol carbonate at a temperature of from - 10‹ to +39À5‹ C. (i.e. the glycol carbonate solvent is in the solid state) using a free radical catalyst system containing an oxidizing agent (other than an organic hydroperoxide), which is soluble in ethylene glycol carbonate, and either a 1,3-diketone or oxalic acid. The optional comonomer may be an acidic monomer or salt thereof, e.g. sodium methallyl sulphonate. The glycol carbonate solvent may additionally include another solvent for polyacrylonitrile, e.g. dimethyl formamide, dimethyl sulphoxide, propylene carbonate or butylene carbonate. Suitable catalyst oxidizing agents include persulphates such as ammonium peroxydisulphate. Solutions of the polymers can be formed into filaments, fibres, films or wires.
GB2941271A 1970-07-01 1971-06-23 Acrylonitrile polymers Expired GB1348420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702032548 DE2032548A1 (en) 1970-07-01 1970-07-01 Acrylonitrile polymers with high molecular weight, high crystalline proportions and narrow molecular weight distribution and process for their preparation

Publications (1)

Publication Number Publication Date
GB1348420A true GB1348420A (en) 1974-03-20

Family

ID=5775483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2941271A Expired GB1348420A (en) 1970-07-01 1971-06-23 Acrylonitrile polymers

Country Status (5)

Country Link
BE (1) BE769388A (en)
DE (1) DE2032548A1 (en)
FR (1) FR2097115A1 (en)
GB (1) GB1348420A (en)
NL (1) NL7109108A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507777A1 (en) * 1975-02-22 1976-09-02 Bayer Ag SOLUTION POLYMERIZATION OF ACRYLNITRILE POLYMERIZES
CN111675774A (en) * 2020-06-30 2020-09-18 内蒙合成化工研究所 Grading method of nitrile rubber

Also Published As

Publication number Publication date
FR2097115A1 (en) 1972-03-03
BE769388A (en) 1971-11-16
NL7109108A (en) 1972-01-04
DE2032548A1 (en) 1972-01-20

Similar Documents

Publication Publication Date Title
FR2147269B1 (en)
JPS5590515A (en) Preparation of ethylene copolymer
US3926930A (en) Hygroscopic acrylic synthetic fibers and method for preparing the same
Shindo et al. Dielectric properties of stereoregular poly (methyl methacrylates)
GB1348420A (en) Acrylonitrile polymers
US2619507A (en) Di(methanesulfonyl) peroxide and its preparation
ES8606543A1 (en) Process for preparing polyacrylonitrile articles having high tensile strength and modulus.
GB862963A (en) A process for reducing the tendency of fibre-forming linear polymers to acquire an electrostatic charge during the processing thereof to form threads or fibres
US3067186A (en) Vinyl chloride polymerisation process
GB1084590A (en) Methacrolein polymers and process for their preparation
GB1416630A (en) Gloss-stabilised fibres filaments and films of acrylonitrile copolymers
GB1348044A (en) Filaments and films of acrylonitrile polymers which are free from vacuoles
GB1329357A (en) Acrylonitrile copolymer threads and films which are free from vacuoles
JPS5330686A (en) Preparation of ethylene-propylene block copolymers
GB748303A (en) Polymeric compositions and spinning process
ES8202837A1 (en) Improved polyacrylamide and polyacrylic acid polymers
GB1413359A (en) Process for the stabilization of acrylonitrile polymer solutions
GB1126651A (en) Improvements in or relating to polymers of methyl vinyl ether
ES423290A1 (en) Marking of articles
GB745206A (en) Compositions derived from polymers and copolymers of acrylonitrile
GB1267602A (en) Improved method for the production of acrylonitrile polymers and copolymers
JPS5576111A (en) Preparation of spinning solution of alumina fiber
SU144287A1 (en) The method of producing acetaldehyde polymer
DE1720433B1 (en) PROCESS FOR THE POLYMERIZATION OF VINYL COMPOUNDS
SU392077A1 (en)

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees