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Unprecedented polymerization of δ ‐valerolactone initiated by the stable enolate of γ ‐butyrolactone
Author(s) -
Juzwa Maria,
Jedliński Zbigniew
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/(sici)1521-3927(200003)21:4<166::aid-marc166>3.0.co;2-g
Subject(s) - polymerization , polymer chemistry , monomer , polymer , chemistry , molar mass distribution , bond cleavage , bulk polymerization , chain transfer , branching (polymer chemistry) , radical polymerization , organic chemistry , catalysis
Polymerization of δ ‐valerolactone has been studied using γ ‐butyrolactone enolate as initiator. Mechanistic studies show that the initiation proceeds with incorporation of the initiator into the growing polymer chain and acyl‐oxygen bond cleavage of the monomer. The molecular weight distribution of the resulting polymers is narrow compared to that of poly( δ ‐valerolactone) obtained from common anionic initiators, e. g. alkali metal alkoxides.