Synthesis of α,ω-dihalopermethyloligosilanes and silane-siloxane copolymers

Synthesis of α,ω-dihalopermethyloligosilanes and silane-siloxane copolymers
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α,ω-二卤代全甲基低聚硅烷和硅烷-硅氧烷共聚物的合成

DOI:
10.1007/bf02505684
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发表时间:
1997
期刊:
影响因子:
--
通讯作者:
B. Zavin
B. Zavin
中科院分区:
--
文献类型:
--
作者:
A. I. Chernyavskii;B. Zavin

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以十二甲基环己基硅烷和溴为原料,合成了α,ω-二溴全甲基低聚硅烷Br(SiMe 2)nBr(n=2-4,6)。(Me 2Si)6与MCl 4(M=Sn,Ti)的反应伴随着Si-Si-和Si-C-键的断裂而进行,并形成α,ω-二氯全甲基低聚硅烷Cl(SiMe 2)nCl(n=2-4,6)和环己硅烷的氯代衍生物ClmSi 6 Me 12 −m(m=1,2)。通过α,ω-二卤代全甲基低聚硅烷与1,5-二羟基六甲基三硅氧烷的多官能团共缩聚反应,得到了具有规则结构的硅烷-硅氧烷共聚物。
α,ω-Dibromopermethyloligosilanes, Br(SiMe2)nBr (n=2–4, 6), were prepared by the reaction of dodecamethylcyclohexasilane with bromine. The reaction of (Me2Si)6with MCl4(M=Sn, Ti) proceeds with the cleavage of Si−Si- and Si−C-bonds with the formation of α,ω-dichloropermethyloligosilanes, Cl(SiMe2)nCl (n=2–4, 6), and chloro derivatives of cyclohexasilane, ClmSi6Me12−m(m=1, 2). Silane-siloxane copolymers of regular structure were obtained by heterofunctional copolycondensation of α,ω-dihalopermethyloligosilanes with 1,5-dihydroxyhexamethyltrisiloxane.
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