Improved coordination catalyst for the alternating copolymerization of butadiene and propylene | Zendy

Wieder W. | Zendy; Witte J. | Zendy

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Improved coordination catalyst for the alternating copolymerization of butadiene and propylene

Author(s) -

Wieder W.,

Witte J.

Publication year - 1981

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1981.070260801

Subject(s) - copolymer , catalysis , vanadium , propylene oxide , materials science , polymer chemistry , alkyl , organic chemistry , chemistry , polymer , composite material , ethylene oxide

A close reexamination of previously reported vanadium‐based catalysts for the alternating copolymerization of butadiene and propylene resulted in an improved catalytic system for the above reaction. We found the system VO(OR) 2 Cl/ i ‐Bu 3 Al where R is neopentyl to be most effective. Qualitative relationships between the structure of the alkyl residue in VO(OR) 2 Cl and the catalyst efficiency have been elaborated. High‐molecular‐weight copolymers of butadiene and propylene, which consist of a perfectly alternating sequence of trans ‐1,4‐butadiene and propylene units, are obtained.

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