Synthesis and conversion reactions of alkenyl- and hydride siloxanes
作者:K.A. Andrianov、V.I. Sidorov、L.M. Khananashvili
DOI:10.1016/s0022-328x(00)80325-3
日期:1965.11
organosiloxanes containing the vinyl group in the α- and β-positions, with diazomethane and phenyl azide have been studied. It is concluded that siloxanes containing the vinyl group in the α-position react with diazomethane and phenyl azide but not siloxanes with the vinyl group in the β-position. The 1-pyrazolin-3-yl derivatives of organosiloxanes formed decompose when heated yielding the corresponding
Additions of dichloromethylvinylsilane and of unsaturated organic compounds to pentamethyldisiloxane and to 3H-heptamethyltrisiloxane
作者:K. A. Andrianov、V. I. Sidorov、L. M. Khananashvili
DOI:10.1007/bf00912434
日期:1967.2
Kaufman,B.L.; Karlin,A.V., Journal of general chemistry of the USSR, 1970, vol. 40, p. 1555 - 1556
作者:Kaufman,B.L.、Karlin,A.V.
DOI:——
日期:——
<i>In Situ</i> NMR Measurement of Novel Silicone Elastomer Obtained by Cross-Linking of Silicones Having Phenylene Backbone and Hyperbranched Molecular Architectures
Novel silicone elastomer was obtained by cross-linking reaction of thermal hydrosilylation reaction between poly(oxysilphenylenesiloxydisiloxane) having vinyl groups in side chain and SiH-terminated hyperbranched polycarbosiloxane. In situ measurements using solid-state H-1 NMR were performed during the cross-linking reaction on heating. The results suggest that the cross-linking reaction was accelerated beyond 110 degrees C. Two overlapping reaction mechanisms reflect the characteristic molecular structures of poly(oxysilphenylenesiloxydisiloxane) having vinyl groups and SiH-terminated hyperbranched polycarbosiloxane. A possible structural model to satisfy both reaction mechanisms is proposed to characterize the development of the cross-linking reaction.