Abstract

New high-temperature resistant poly(carboranylmethyldiorganosiloxane)s have been synthesized by the polycondensation of 1,7-bis-[hydroxy(dimethyl)silylmethyl]-m-carborane with bis-(dimethylamino)diorganosilanes. It has been shown that the replacement of dimethylsiloxane units in polymer chain by methylphenylsiloxane or diphenylsiloxane units leads to formation of amorphous polymers. The polymers show high thermal stability and resistance to alkaline reagent. Thermally stable and fire resistant vulcanizates showing high strength within –40 to +300°C (in air) have been obtained from the poly(carboranylsiloxane)s.

中文翻译：

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基于它们的新型聚（碳硼烷基甲基二有机硅氧烷）和硫化胶

摘要

-新的耐高温聚（carboranylmethyldiorganosiloxane）类已经由1,7-双[羟基（二甲基）甲硅烷基甲基]缩聚合成的米-carborane与双- （二甲基氨基）二有机硅烷。已经表明，用甲基苯基硅氧烷或二苯基硅氧烷单元代替聚合物链中的二甲基硅氧烷单元导致形成无定形聚合物。聚合物显示出高的热稳定性和耐碱性试剂。从聚（碳硼烷基硅氧烷）中获得了在–40至+ 300°C（在空气中）具有高强度的热稳定且耐火的硫化橡胶。