ES415332A1 - Process for the preparation of polymers with a broadened molecular weight distribution from living homo polymers or copolymers of conjugated dienes - Google Patents

Process for the preparation of polymers with a broadened molecular weight distribution from living homo polymers or copolymers of conjugated dienes

Info

Publication number
ES415332A1
ES415332A1 ES415332A ES415332A ES415332A1 ES 415332 A1 ES415332 A1 ES 415332A1 ES 415332 A ES415332 A ES 415332A ES 415332 A ES415332 A ES 415332A ES 415332 A1 ES415332 A1 ES 415332A1
Authority
ES
Spain
Prior art keywords
polymers
copolymers
preparation
molecular weight
weight distribution
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
ES415332A
Other languages
Spanish (es)
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of ES415332A1 publication Critical patent/ES415332A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
    • C08G81/022—Block or graft polymers containing only sequences of polymers of C08C or C08F containing sequences of polymers of conjugated dienes and of polymers of alkenyl aromatic compounds
    • 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
    • C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
    • C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
    • C08C19/44—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
    • 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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

A process for the preparation of polymers with a broad molecular weight distribution from homopolymers or active copolymers of conjugated dienes, obtained by solution polymerization with the aid of a hydrocarbyl lithium compound, characterized in that, with a conversion of mononer greater than 50%, at least of the active polymer molecules are coupled by means of one or more compounds (a), which can couple more than four molecules of the active polymer per molecule and are soluble in the polymerization medium, and at least 5% of the active polymer molecules are coupled by means of one or more compounds (10), which can couple up to four molecules of the active polymer per molecule and are also soluble in the polymerization medium. (Machine-translation by Google Translate, not legally binding)
ES415332A 1972-05-31 1973-05-29 Process for the preparation of polymers with a broadened molecular weight distribution from living homo polymers or copolymers of conjugated dienes Expired ES415332A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7207334.A NL164050C (en) 1972-05-31 1972-05-31 PROCESS FOR PREPARING POLYMERS WITH WIDENED MOLECULAR WEIGHT DISTRIBUTION FROM LIVING HOMO OR COPOLYMERS OF CONJUGATED SERVES.

Publications (1)

Publication Number Publication Date
ES415332A1 true ES415332A1 (en) 1976-02-01

Family

ID=19816173

Family Applications (1)

Application Number Title Priority Date Filing Date
ES415332A Expired ES415332A1 (en) 1972-05-31 1973-05-29 Process for the preparation of polymers with a broadened molecular weight distribution from living homo polymers or copolymers of conjugated dienes

Country Status (11)

Country Link
JP (1) JPS5617362B2 (en)
AU (1) AU473636B2 (en)
BE (1) BE799852A (en)
CA (1) CA1032290A (en)
DE (1) DE2327378C2 (en)
ES (1) ES415332A1 (en)
FR (1) FR2186483B1 (en)
GB (1) GB1396630A (en)
IT (1) IT988729B (en)
NL (1) NL164050C (en)
ZA (1) ZA733643B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU515569B2 (en) * 1977-11-11 1981-04-09 Phillips Petroleum Company Coupled diene polymers
JPS57100112A (en) * 1980-12-16 1982-06-22 Asahi Chem Ind Co Ltd Perfectly random styrene-butadiene copolymer rubber
GB8918702D0 (en) * 1989-08-16 1989-09-27 Shell Int Research Process for the preparation of random solution copolymers of conjugated dienes and vinyl aromatic compounds
JPH0753649A (en) * 1993-07-12 1995-02-28 Shell Internatl Res Maatschappij Bv Star polymer
US5310798A (en) * 1993-08-16 1994-05-10 Bridgestone/Firestone, Inc. Diene polymers and copolymers terminated with compounds having multiple-bonded nitrogen atoms and partially crosslinked with polyfunctional reagents

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135716A (en) * 1958-11-06 1964-06-02 Phillips Petroleum Co Process for preparing terminally reactive polymers
US3281383A (en) * 1962-08-09 1966-10-25 Phillips Petroleum Co Branched polymers prepared from monolithium-terminated polymers and compounds having at least three reactive sites
US3594452A (en) * 1968-02-06 1971-07-20 Shell Oil Co Polymers prepared from monolithiumterminated block copolymers and certain diesters
US3651025A (en) * 1970-02-02 1972-03-21 Shell Oil Co Diene polymerization process
CA973300A (en) * 1970-09-04 1975-08-19 Henry L. Hsieh ESTERS OF .alpha.,.beta.-UNSATURATED ACIDS AS COUPLING AGENTS FOR ALKALI METAL CONTAINING POLYMERS

Also Published As

Publication number Publication date
JPS4942784A (en) 1974-04-22
FR2186483B1 (en) 1976-05-28
DE2327378C2 (en) 1983-03-03
BE799852A (en) 1973-11-22
NL7207334A (en) 1973-12-04
IT988729B (en) 1975-04-30
CA1032290A (en) 1978-05-30
FR2186483A1 (en) 1974-01-11
ZA733643B (en) 1974-04-24
NL164050C (en) 1980-11-17
GB1396630A (en) 1975-06-04
DE2327378A1 (en) 1973-12-13
JPS5617362B2 (en) 1981-04-22
AU5625773A (en) 1974-12-05
NL164050B (en) 1980-06-16
AU473636B2 (en) 1976-06-24

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