Tv. Astapova et Nn. Makarova, SYNTHESIS OF ORGANOCYCLOCARBOSILOXANE POL YMERS BY HYDROSILYLATION WITH VARIOUS PLATINUM COMPLEXES, Vysokomolekularnye soedinenia. Seria A, 38(8), 1996, pp. 1442-1444
The effect of different forms of Pt complex catalysts on the structure
of cyclolinear carbosiloxane polymers in polyaddition reactions was s
tudied by gel permeation chromatography and Si-29 NMR spectroscopy. Us
ing poly(hexaethylcyclotetrasiloxane-2,6-ethylene) as an example, it w
as shown that the use of the catalyst in colloidal form decreases the
polydispersity of the polymer, in contrast to the unreduced complex ca
talysts.