Regioselective rhodium‐containing catalysts for ring‐opening polymerizations and hydrosilylations
作者:
J. V. Crivello,
M. Fan,
期刊:
Journal of Polymer Science Part A: Polymer Chemistry
(WILEY Available online 1992)
卷期:
Volume 30,
issue 1
页码: 1-11
ISSN:0887-624X
年代: 1992
DOI:10.1002/pola.1992.080300101
出版商: John Wiley&Sons, Inc.
关键词: ring‐opening polymerization;epoxide polymerization;cationic polymerization;transition metal initiators;rhodium initiators;rhodium colloid initiators;hydrosilylation reactions
数据来源: WILEY
摘要:
AbstractOrganometallic rhodium complexes are described which are highly efficient initiators for the ring‐opening polymerization of expoxides and other heterocyclic compounds. A cocatalyst, consisting of a compound or polymer containing silicon–hydrogen bonds must also be present. These same catalyst–cocatalyst mixtures are also highly active for hydrosilylation reactions. Other complexes bearing phosphine ligands have been discovered, which while active for hydrosilylation, are not catalysts for epoxide polymerizations. Polymer supported rhodium catalysts are also described which permit the synthesis of epoxy‐functional silanes in high yields without competing ring‐opening polym
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