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‘Immortal’ anionic ring‐opening polymerization by metalloporphyrin catalyst
Author(s) -
Inoue Shohei
Publication year - 1986
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19860030122
Subject(s) - alkoxide , polymerization , porphyrin , polymer chemistry , catalysis , polymer , molar mass distribution , chain transfer , epoxide , chemistry , living polymerization , aluminium , ring (chemistry) , ring opening polymerization , anionic addition polymerization , alcohol , photochemistry , organic chemistry , radical polymerization
Ring‐opening polymerization of epoxide initiated by aluminium porphyrin gives polyether with narrow molecular weight distribution even in the presence of chain transfer agent such as alcohol. This is due to the rapid, reversible exchange between (porphinato)aluminium alkoxide as the growing species and alcohol. As a result, the growing polymer molecules never die, and the reaction may be called ‘immortal’ polymerization.