A method comprising heating in the presence of a catalyst, a mixture comprising (i) a reaction product obtained by mixing in the presence of a platinum group metal-containing catalyst at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule and at least one compound having at least one aliphatic unsaturation; (ii) at least one endblocker, and optionally (iii) at least one organosiloxane chosen from a hydrolyzate or a cyclosiloxane, so to cause polymerization of components (i), (ii), and optionally (iii) to form branched polymers.
一种方法,包括在催化剂存在下加热一种混合物,该混合物包括(i) 在含
铂族
金属催化剂存在下将至少一种有机氢
硅化合物(每分子含有至少一个
硅键合氢原子)和至少一种具有至少一个脂肪族不饱和度的化合物混合而得到的反应产物;(ii)至少一种封端剂,以及 (iii)至少一种选自
水解物或环
硅氧烷的有机
硅氧烷,使组分(i)、(ii)和(iii)聚合,形成支化聚合物。