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Anionic polymerization of spiro monomers derived from germylene
Author(s) -
Shoda ShinIchiro,
Ohnishi Yasuharu,
Yagi Katsuhiko,
Kamo Hiroki,
Kobayashi Shiro
Publication year - 1996
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19961070104
Subject(s) - germanium , monomer , polymerization , polymer chemistry , polymer , chemistry , alkali metal , materials science , organic chemistry , silicon
The ring‐opening polymerization of a spiro germanium enolate proceeds smoothly catalyzed by an anionic initiator, giving rise to a poly(germanium acyclic enolate), an organometallic polymer having a germanium enolate structure. The resulting polymers have an O ‐germanium enolate unit and a C ‐germanium enolate unit in the main chain. Various anionic catalysts including neutral alkali metal salts, methanol, and water initiate the polymerization effectively. The monomer of the spiro germanium enolate is easily prepared in situ by the reaction of a cyclic germylene with methyl vinyl ketone.