GB1448177A - Process for the preparation of block polymers - Google Patents

Process for the preparation of block polymers

Info

Publication number
GB1448177A
GB1448177A GB3051474A GB3051474A GB1448177A GB 1448177 A GB1448177 A GB 1448177A GB 3051474 A GB3051474 A GB 3051474A GB 3051474 A GB3051474 A GB 3051474A GB 1448177 A GB1448177 A GB 1448177A
Authority
GB
United Kingdom
Prior art keywords
polymethacrylonitrile
styrene
block copolymers
dilithium
methacrylonitrile
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
GB3051474A
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber 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 Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of GB1448177A publication Critical patent/GB1448177A/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
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • C08F297/04—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
    • C08F297/048—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes polymerising vinyl aromatic monomers, conjugated dienes and polar monomers

Abstract

1448177 Methacrylonitrile block copolymers GOODYEAR TIRE & RUBBER CO 10 July 1974 [6 Aug 1973] 30514/74 Heading C3P Five-block copolymers ABCBA are obtained by polymerizing a conjugated diene (to form block C) and styrene or an alkyl styrene (to form blocks B) in the presence of a dilithium organometallic initiator, followed by addition of methacrylonitrile to the lining BCB polymer to form the terminal A blocks. Examples refer to the production of polymethacrylonitrile-polystyrene - polybutadiene - polystyrene - polymethacrylonitrile block copolymers in the presence of diisoprenyl dilithium or dilithiopolyisoprene initiators, the styrene and butadiene being charged as a mixture. A comparative polymethacrylonitrile - polybutadiene - polymethacrylonitrile copolymers is also prepared, using diisoprenyldilithium.
GB3051474A 1973-08-06 1974-07-10 Process for the preparation of block polymers Expired GB1448177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38591673A 1973-08-06 1973-08-06

Publications (1)

Publication Number Publication Date
GB1448177A true GB1448177A (en) 1976-09-02

Family

ID=23523418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3051474A Expired GB1448177A (en) 1973-08-06 1974-07-10 Process for the preparation of block polymers

Country Status (9)

Country Link
JP (1) JPS559422B2 (en)
BE (1) BE818468A (en)
BR (1) BR7406342D0 (en)
CA (1) CA1038535A (en)
DE (1) DE2432696C3 (en)
FR (1) FR2240243B1 (en)
GB (1) GB1448177A (en)
IT (1) IT1016965B (en)
NL (1) NL172554C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113416288A (en) * 2021-06-01 2021-09-21 广东众和化塑股份公司 Preparation method of environment-friendly gel-free grafted diene polymer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004323743A (en) * 2003-04-25 2004-11-18 Institute Of Physical & Chemical Research Method for producing block copolymer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113416288A (en) * 2021-06-01 2021-09-21 广东众和化塑股份公司 Preparation method of environment-friendly gel-free grafted diene polymer

Also Published As

Publication number Publication date
NL7410574A (en) 1975-02-10
DE2432696A1 (en) 1975-02-20
DE2432696C3 (en) 1982-04-08
CA1038535A (en) 1978-09-12
BR7406342D0 (en) 1975-09-09
NL172554C (en) 1983-09-16
AU7105674A (en) 1976-01-15
FR2240243A1 (en) 1975-03-07
FR2240243B1 (en) 1977-10-14
JPS559422B2 (en) 1980-03-10
IT1016965B (en) 1977-06-20
DE2432696B2 (en) 1981-02-26
JPS5049390A (en) 1975-05-02
BE818468A (en) 1974-12-02
NL172554B (en) 1983-04-18

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Legal Events

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