苯基硅橡胶具有良好的耐高温和耐寒性能,被广泛地应用于宇宙飞行器中。本文报导了以甲基苯基二乙氧基硅烷为原料,克服了反应中水解不易完全,致使聚合体分子量长不大,以及苯基易打断,使聚合物易于交联等困难,制得了分子量适宜的甲基苯基硅 Phenyl silicone rubber has good high temperature and cold resistance, is widely used in spacecraft. This paper reports the use of methylphenyldiethoxysilane as a raw material to overcome the difficulty of hydrolysis in the reaction is not easy, resulting in the molecular weight of the polymer is not long, and easy to break the phenyl, the polymer easily cross-linked and other difficulties obtained Methylphenyl silicon with suitable molecular weight