GB1387920A - Method for preparing divinyl-styrene rubbers - Google Patents

Method for preparing divinyl-styrene rubbers

Info

Publication number
GB1387920A
GB1387920A GB4458572A GB4458572A GB1387920A GB 1387920 A GB1387920 A GB 1387920A GB 4458572 A GB4458572 A GB 4458572A GB 4458572 A GB4458572 A GB 4458572A GB 1387920 A GB1387920 A GB 1387920A
Authority
GB
United Kingdom
Prior art keywords
reaction
styrene
butadiene
polymerization
mixture
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
GB4458572A
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.)
SHATALOV V P ROZINOER Y M SINA
Original Assignee
SHATALOV V P ROZINOER Y M SINA
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 SHATALOV V P ROZINOER Y M SINA filed Critical SHATALOV V P ROZINOER Y M SINA
Publication of GB1387920A publication Critical patent/GB1387920A/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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—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
    • C08F236/04—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
    • C08F236/10—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 with vinyl-aromatic monomers

Landscapes

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

Abstract

1387920 Butadiene-styrene copolymerization V P SHATALOV Y M ROZINOER G M SINAISKY and M V BULGAKOVA 27 Sept 1972 [27 Sept 1971] 44585/72 Heading C3P Copolymers are prepared by simultaneously passing a mixture of styrene and butadiene to a reaction zone, the polymerization being carried out in the presence of a polymeric organodilithium compound, e.g. polybutadienedilithium, suitably in an organic medium. During the reaction the monomer mixture is added to the polymerization vessel at a rate at least as great as the rate of polymerization, and preferably 5-10% greater. The less reactive monomer, styrene, therefore builds up in the reaction mixture so that it forms an increasing proportion of the polymer towards the chain ends, and forms terminal homopolymer blocks after cessation of the addition of monomers and reaction of all the butadiene. The reaction may be carried out continuously in two autoclaves, monomers and initiator being continuously added to the first while the product, at 95-98% conversion, is drawn off into the second to complete its reaction.
GB4458572A 1971-09-27 1972-09-27 Method for preparing divinyl-styrene rubbers Expired GB1387920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1699241A SU366723A1 (en) 1971-09-27 1971-09-27 Method for producing statistical divinyl styrene rubbers

Publications (1)

Publication Number Publication Date
GB1387920A true GB1387920A (en) 1975-03-19

Family

ID=20488522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4458572A Expired GB1387920A (en) 1971-09-27 1972-09-27 Method for preparing divinyl-styrene rubbers

Country Status (7)

Country Link
CS (1) CS159500B1 (en)
DD (1) DD99170A1 (en)
DE (1) DE2247470C3 (en)
FR (1) FR2319280A5 (en)
GB (1) GB1387920A (en)
RO (1) RO62457A (en)
SU (1) SU366723A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845154A (en) * 1980-03-07 1989-07-04 Shell Internationale Research Maatschappij B.V. Copolymers of aromatic vinyl compounds and conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US4948849A (en) * 1980-03-07 1990-08-14 Shell Internationale Research Maatschappij B.V. Process for making copolymers of aromatic vinyl compounds ADD conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US8053542B2 (en) 2008-04-30 2011-11-08 Styron Europe Gmbh Styrene-butadiene polymers with styrene gradient and methods of making the same
US8648141B2 (en) 2009-03-19 2014-02-11 Styron Europe Gmbh Styrene butadiene rubber with novel styrene incorporation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496673A1 (en) * 1980-12-23 1982-06-25 Buna Chem Werke Veb Selective polymerisation of butadiene from 4-carbon fractions - using lithium initiator, e.g. di:lithium di:tert-di:amine(s) or di:amide(s)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845154A (en) * 1980-03-07 1989-07-04 Shell Internationale Research Maatschappij B.V. Copolymers of aromatic vinyl compounds and conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US4948849A (en) * 1980-03-07 1990-08-14 Shell Internationale Research Maatschappij B.V. Process for making copolymers of aromatic vinyl compounds ADD conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US8053542B2 (en) 2008-04-30 2011-11-08 Styron Europe Gmbh Styrene-butadiene polymers with styrene gradient and methods of making the same
US8648141B2 (en) 2009-03-19 2014-02-11 Styron Europe Gmbh Styrene butadiene rubber with novel styrene incorporation

Also Published As

Publication number Publication date
CS159500B1 (en) 1975-01-31
FR2319280A5 (en) 1977-02-18
DD99170A1 (en) 1973-07-20
DE2247470A1 (en) 1973-04-19
DE2247470B2 (en) 1981-06-11
RO62457A (en) 1977-10-15
DE2247470C3 (en) 1982-04-15
SU366723A1 (en) 1974-10-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee