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MCM‐41‐Immobilized [Rh(cod)OCH 3 ] 2 Complex – A Hybrid Catalyst for the Polymerization of Phenylacetylene and Its Ring‐Substituted Derivatives
Author(s) -
Balcar Hynek,
Sedláček Jan,
Čejka Jiří,
Vohlídal Jiří
Publication year - 2002
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 - 10.1002/1521-3927(20020101)23:1<32::aid-marc32>3.0.co;2-3
Subject(s) - phenylacetylene , catalysis , polymerization , molecular sieve , mesoporous material , ring (chemistry) , polymer chemistry , chemistry , ring opening polymerization , homogeneous , trimer , organic chemistry , polymer , dimer , physics , thermodynamics
The immobilization of [Rh(cod)OCH 3 ] 2 (cod = cycloocta‐1,5‐diene) on mesoporous molecular sieves MCM‐41 provides the first inorganic‐type hybrid catalyst, which affords heterogeneous polymerization of phenylacetylene and its ring‐substituted derivatives, – 2‐fluorophenylacetylene, 4‐fluorophenylacetylene, and 4‐pentylphenylacetylene – into readily isolable high‐molecular‐weight ( M̄ w from 50 000 to 180 000) substituted polyvinylenes of high cis‐transoid structure. The activity of this catalyst is compared with that of homogeneous catalyst [Rh(cod)OCH 3 ] 2 .