A new ROMP W-initiator as model for W-carbosilane dendrimers for the synthesis of starpolymers

Authors
Beerens, H Verpoort, F Verdonck, L
Citation
H. Beerens et al., A new ROMP W-initiator as model for W-carbosilane dendrimers for the synthesis of starpolymers, J MOL CAT A, 159(2), 2000, pp. 197-201
Citations number
19
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN journal
13811169 → ACNP
Volume
159
Issue
2
Year of publication
2000
Pages
197 - 201
Database
ISI
SICI code
1381-1169(20001002)159:2<197:ANRWAM>2.0.ZU;2-I
Abstract
A new Ring Opening Metathesis Polymerization (ROMP)-initiator based on an a ryloxy-tungsten complex (activated with Me4Sn) anchored on the lowest gener ation of a carbosilane dendrimer (G0) has been synthesized. The catalytic a ctivity of the W-initiator is studied for the ROMP of norbornene as model s ubstrate, generating starpolymers. However, after complete conversion of th e monomer, the Si-core starpolymers react further by a dismutation reaction resulting in branched high molecular weight starpolymers. (C) 2000 Elsevie r Science B.V. All rights reserved.