Poly(Silethynylenedisiloxane) and method for the manufacture thereof.

摘要

Silethynylenedisiloxane polymers are described with repeating units represented by -R<1>R<2>SiC IDENTICAL CSiR<3>R<4>OSiR<5>R<6>O- where R<1>-R<6> independently represent hydrogen atoms, alkyl groups, aryl groups, or alkenyl groups. The polymers are prepared by reacting a disilylacetylene compound represented by the formula X<1>R<1>R<2>SiC IDENTICAL CSiR<3>R<4>X<1> and a silane compound represented by the formula X<2>2SiR<5>R<6>where X<1> and X<2> represent H, OH, OM, or a hydrolyzable group. X<1> and X<2> are not identical and are selected so that they undergo a condensation reaction to form a siloxane bond.