Preparation of polyfunctional initiators for anionic polymerizat

Details Preparation of polyfunctional initiators for anionic polymerizat Preparation of polyfunctional initiators for anionic polymerizat

1988-04-01

1989-04-18

Garvin, Patrick P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

502157, C07F 102

Patent

active

048225304

ABSTRACT:
Oligomeric polyfunctional initiators for anionic polymerization of dienes and/or alkenylaromatics are prepared by a process in which a mixture of dialkenylaromatics and alkenylaromatics in a molar ratio of from 1:4 to 1:100, in an inert solvent, is run, at from 25.degree. to 100.degree. C., continuously or in small portions, with thorough mixing, into an initially taken mixture which contains from 1.2 to 3.0 molar equivalents, based on the dialkenylaromatics, of one or more organolithium compounds and an inert solvent, and is polymerized completely. The resulting oligomeric initiators are used for the preparation of unfunctionalized or functionalized polymers or block copolymers from dienes and/or alkenylaromatics, and the functionalized polymers thus prepared are used as prepolymers for other resins.

REFERENCES:
patent: 3787510 (1974-01-01), Farrar
patent: 3862251 (1975-01-01), Strecker
patent: 3954894 (1976-05-01), Kamienski et al.
patent: 4075253 (1978-02-01), Horiie et al.
patent: 4497748 (1985-02-01), Vitus et al.

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