FR2141513A2 - Peptizing polychloroprepn latices - by thiols at end of polymerization reaction - Google Patents

Peptizing polychloroprepn latices - by thiols at end of polymerization reaction

Info

Publication number
FR2141513A2
FR2141513A2 FR7121163A FR7121163A FR2141513A2 FR 2141513 A2 FR2141513 A2 FR 2141513A2 FR 7121163 A FR7121163 A FR 7121163A FR 7121163 A FR7121163 A FR 7121163A FR 2141513 A2 FR2141513 A2 FR 2141513A2
Authority
FR
France
Prior art keywords
alkyl
latices
polychloroprepn
peptizing
thiols
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.)
Granted
Application number
FR7121163A
Other languages
French (fr)
Other versions
FR2141513B2 (en
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.)
Distugil SA
Original Assignee
Distugil SA
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 Distugil SA filed Critical Distugil SA
Priority to FR7121163A priority Critical patent/FR2141513A2/en
Priority to JP5021071A priority patent/JPS5545561B2/ja
Priority to NLAANVRAGE7109459,A priority patent/NL170008C/en
Priority to DE2134158A priority patent/DE2134158C3/en
Priority to BE769824A priority patent/BE769824A/en
Priority to GB3238871A priority patent/GB1345438A/en
Publication of FR2141513A2 publication Critical patent/FR2141513A2/en
Application granted granted Critical
Publication of FR2141513B2 publication Critical patent/FR2141513B2/fr
Granted 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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F36/14—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
    • C08F36/16—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/08—Depolymerisation
    • 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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Polychloroprene latices, polymerized in the presence of S and a modifying agent having an activity in the medium, are peptized instantly by treating, at >=pH 9, pref. 11-13, in a late stage of the polymerization, with a thiol having a marked destructive action on polysulphide links. The third has the general formula R.SH or the ionised form RS-Me+ (where Me is an alkali cation or NH4; R is alkyl or 2-16C, e.g. amylmercaptan; aryl or alkylaryl e.g. thiophenol, arylcarbonyl, e.g. thiobenzoic acid; alkyl carboxy, e.g. mercapto succinic acid, alkyl naphthyl or nphthyl, e.g. thio-beta-naphthol; arylthiazole or thiazole e.g. mercapto-benzothiazole; aryl imidazole or imidazole, e.g. mercaptobenzimidazole; alkylxanthate, e.g. Na isorpopylxanthate). The modifying agent is iodoform or a dialkylxanthogene disulphide. The polymers have good mechanical properties.
FR7121163A 1970-07-10 1971-06-03 Peptizing polychloroprepn latices - by thiols at end of polymerization reaction Granted FR2141513A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7121163A FR2141513A2 (en) 1971-06-03 1971-06-03 Peptizing polychloroprepn latices - by thiols at end of polymerization reaction
JP5021071A JPS5545561B2 (en) 1970-07-10 1971-07-07
NLAANVRAGE7109459,A NL170008C (en) 1970-07-10 1971-07-08 METHOD FOR PEPTIZING A POLYCHLOROPRENE LATEX, AND FORMED PRODUCT, PRODUCED WHOLE OR PART
DE2134158A DE2134158C3 (en) 1970-07-10 1971-07-08 Process for peptizing polychloroprene latex
BE769824A BE769824A (en) 1970-07-10 1971-07-09 IMMEDIATE PEPTIZATION PROCESS OF POLYCHLOROPRENE LATEX
GB3238871A GB1345438A (en) 1970-07-10 1971-07-09 Process for the peptisation of chloroprene polymer latex

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7121163A FR2141513A2 (en) 1971-06-03 1971-06-03 Peptizing polychloroprepn latices - by thiols at end of polymerization reaction

Publications (2)

Publication Number Publication Date
FR2141513A2 true FR2141513A2 (en) 1973-01-26
FR2141513B2 FR2141513B2 (en) 1973-06-29

Family

ID=9078451

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7121163A Granted FR2141513A2 (en) 1970-07-10 1971-06-03 Peptizing polychloroprepn latices - by thiols at end of polymerization reaction

Country Status (1)

Country Link
FR (1) FR2141513A2 (en)

Also Published As

Publication number Publication date
FR2141513B2 (en) 1973-06-29

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