| 摘要 |
<p>A method for manufacturing, with high yield and without accompanying depolymerization, an organosilicon polymer with double-ended functionality which contains a bond between a silicon atom and a hydrogen atom or an alkenyl group at both ends of the molecular chain. The organosilicon polymer with double-ended functionality is expressed by the general formula: R<3>R<1>2SiO(R<1>2SiO)pR<1>2{R<4>R<1>2SiO(R<1>2SiO)mSiR<1>2}nR<3> wherein R<1> is a C1-10 monovalent hydrocarbon group that does not contain an aliphatic unsaturated bond, R<2> is a C2-10 alkenyl group, R<3> in the same molecule is either a hydrogen atom or a C2-10 alkenyl group, R<4> is a C2-10 alkylene group, m is an integer equal to or greater than 0, n is a positive integer and p is an integer equal to or greater than 0. This method comprises an addition polymerization of a diorganosiloxane, expressed by the general formula, R<2>R<1>2SiO(R<1>2SiO)mSiR<1>2H, and a diorganosiloxane expressed by the general formula, R<3>R<1>2SiO(R<1>2SiO)pSiR<1>2R<3>, in the presence of a hyrosilylation catalyst. <IMAGE></p> |
