Acyclic diene metathesis (ADMET) oligomerization of divinyltetramethyldisiloxane in the presence of rhodium and ruthenium complexes

Abstract

Acyclic diene metathesis (ADMET) polymerization of divinyltetramethyldisiloxane in the presence of rhodium [RhCl(COD)]2 and ruthenium RuCl2(PPh3)3 catalysts led predominantly to linear oligomers [M n=1815,M w/M n=1.16] if the rhodium catalyst was used or to mixtures of dimeric and trimeric oligomers if the ruthenium complex was applied. The rhodium complex appeared to be the first effective catalyst for ADMET polymerization of divinyldisubstituted organosilicon compounds.