GB1216105A - Polymerization of acrylic monomers - Google Patents

Polymerization of acrylic monomers

Info

Publication number
GB1216105A
GB1216105A GB698868A GB698868A GB1216105A GB 1216105 A GB1216105 A GB 1216105A GB 698868 A GB698868 A GB 698868A GB 698868 A GB698868 A GB 698868A GB 1216105 A GB1216105 A GB 1216105A
Authority
GB
United Kingdom
Prior art keywords
acid
per cent
present
weight
polymerization
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
GB698868A
Inventor
Henry Volk
Percy Jay Hamlin
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1216105A publication Critical patent/GB1216105A/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
    • C08F20/04—Acids, Metal salts or ammonium salts thereof
    • C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • 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
    • C08F20/52—Amides or imides
    • C08F20/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide

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)
  • Polymerisation Methods In General (AREA)

Abstract

1,216,105. Polymerization of acrylic monomers. DOW CHEMICAL CO. 13 Feb., 1968 [23 Feb., 1967], No. 6988/68. Heading C3P. An aqueous solution of at least 20 per cent by weight of acrylic acid and 0 to 80 per cent by weight of either acrylamide or one or more water soluble, nitrogen substituted acrylic amides, is polymerized in the presence of a mineral acid having a dissociation constant of at least 7À5 Î 10<SP>-3</SP> and/or an organic acid having a dissociation constant of at least 1À7 Î 10<SP>-5</SP>, the acid(s) being present in such proportions that the polymer is precipitated. Preferably the solution contains 1 to 30 per cent of the monomer(s), the mineral acid may be sulphuric acid present in from 1 to 50 per cent, or phosphoric acid present in from 5 to 25 per cent, and the organic acid may be trichloroacetic acid present in from 0À1 to 10 per cent by weight of solution. Oxygen may be removed from the polymerization system and the reaction initiated by suitable catalyst, i.e. a free radical polymerization catalyst, present in from 0À0005% to 1% by weight of the total monomers. The solution may additionally contain a diluent monomer such as a cationic water-soluble aminoalkyl acrylate present in less than 25 weight per cent of monomers. The reaction mixture may be agitated during polymerization and the precipitated polymer may be recovered by agglomeration. In the Examples, acrylic acid and acrylamide are copolymerized in the presence of sulphuric acid or trichloroacetic acid using a catalyst system comprising potassium persulphate and sodium metabisulphite.
GB698868A 1967-02-23 1968-02-13 Polymerization of acrylic monomers Expired GB1216105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61784567A 1967-02-23 1967-02-23

Publications (1)

Publication Number Publication Date
GB1216105A true GB1216105A (en) 1970-12-16

Family

ID=24475289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB698868A Expired GB1216105A (en) 1967-02-23 1968-02-13 Polymerization of acrylic monomers

Country Status (3)

Country Link
DE (1) DE1720535A1 (en)
GB (1) GB1216105A (en)
NL (1) NL6802019A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622425A (en) * 1979-08-24 1986-11-11 Rhone-Poulenc Industries Process for the preparation of aqueous solutions of low molecular weight polyacrylic acids or their salts
US7845931B2 (en) 2004-09-23 2010-12-07 Molecular Imprints, Inc. Polymerization technique to attenuate oxygen inhibition of solidification of liquids and composition therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622425A (en) * 1979-08-24 1986-11-11 Rhone-Poulenc Industries Process for the preparation of aqueous solutions of low molecular weight polyacrylic acids or their salts
US7845931B2 (en) 2004-09-23 2010-12-07 Molecular Imprints, Inc. Polymerization technique to attenuate oxygen inhibition of solidification of liquids and composition therefor

Also Published As

Publication number Publication date
DE1720535A1 (en) 1971-07-08
NL6802019A (en) 1968-08-26

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