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Formation of a siloxane bond via reactions of chlorosilanes with Zinc Oxide in Aprotic Media

机译:在非质子介质中通过氯硅烷与氧化锌反应形成硅氧烷键

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It was shown that reacts with mono-and diorgano-substituted dhlorosilanes RsICl_3 and R_2SiCl_2 (R=CH_3 or C_6H_5)in aprotic media zinc oxide to afford poly(ogranosiliozanes)through intermediate organometalloslioxane compounds.By arying the conditions of hydrolytic and thermal decomoposition of these compound,one can control the compostion adn structure of final siloxane products.As a resulta completely soluble high-molecular-mass poly(methylosilsesquioxane)with M ~25000 was first synthesized ased on CH_3SiCl_3.The effect of experimental conditions on the composition and molecular mass characteristics of poly(organosiloxanes)was studied usign GLC,GPC,and ~1H (~29Si)NMR spectroscopy.
机译:结果表明,在非质子介质氧化锌中,单有机取代的和二有机取代的卤代硅烷RsICl_3和R_2SiCl_2(R = CH_3或C_6H_5)发生反应,可通过中间体有机金属氧杂环丁烷化合物提供聚(氧杂硅氮烷)。通过水解和热分解的条件因此,首先在CH_3SiCl_3上合成了M〜25000的完全溶解的高分子聚甲基倍半硅氧烷。使用GLC,GPC和〜1H(〜29Si)NMR光谱研究了聚有机硅氧烷的化学特征。

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