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Anionic polymerization of oxirane in the presence of the polyiminophosphazene base t ‐Bu‐P 4
Author(s) -
Eßwein Beate,
Steidl Norbert M.,
Möller Martin
Publication year - 1996
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/marc.1996.030170211
Subject(s) - ethylene oxide , polymer chemistry , polymerization , dispersity , copolymer , anionic addition polymerization , base (topology) , ethylene , protonation , chemistry , cationic polymerization , macromolecule , ring opening polymerization , oxide , materials science , catalysis , organic chemistry , polymer , ion , mathematical analysis , biochemistry , mathematics
The use of the polyiminophosphazene base t ‐Bu‐P 4 (1) for the anionic polymerization of ethylene oxide is described. Polymerization initiated by a monoalkoxide of the protonated base leads to well‐defined poly(ethylene oxide)s with low polydispersity ( M w / M n ≈ 1.1). Furthermore, graft copolymers of poly[ethylene‐ co ‐(vinyl alcohol)] (PEVA) with poly(ethylene oxide) and a star macromolecule were synthesized from multifunctional polyalkoxides in high yields.