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

✍ Scribed by Herlinde Beerens; Francis Verpoort; Ludo Verdonck

• Book ID: 104420957
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 92 KB
• Volume: 159
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/s1381-1169(00)00158-8

✦ Synopsis

Ž

. Ž A new Ring Opening Metathesis Polymerization ROMP -initiator based on an aryloxy-tungsten complex activated with . Ž . Me Sn anchored on the lowest generation of a carbosilane dendrimer G0 has been synthesized. The catalytic activity of 4 the W-initiator is studied for the ROMP of norbornene as model substrate, generating starpolymers. However, after complete conversion of the monomer, the Si-core starpolymers react further by a dismutation reaction resulting in branched high molecular weight starpolymers.