硅烷

This article reviewes the recent progress in applied research of several typical preceramic polymers,including polycarbosilane,polysilazane,polysiloxane, polysilane ,etc,which were used in the preparation of ceramic materials.

概述了几种典型的陶瓷先驱体聚合物聚碳硅烷、聚硅氮烷、聚硅氧烷和聚硅烷等在陶瓷材料制备中的应用研究进展，重点阐述了在该领域所取得的研究成果，并针对目前存在的不足提出了今后的研究方向。

Novel organic silane of 3,3′-dihydroxyldiphenoxydimethyl alkoxy silane and 3,3′,3-trihydroxyldiphenoxydimethylalkoxy silane triglycidyl ether for epoxy resin modification were synthesized.

研究了含酚羟基有机烷氧基硅烷及3，3′，3-三羟基苯氧基硅烷三缩水甘油醚两种新型有机硅改性剂对双酚F环氧树脂力学性能及热性能的影响。

Flowable polysilane polymers have been synthesized by sodium coupling of diorgano-dichlorosilanes with diphenylmethylchlorosilane in toluene.

采用具有不同有机取代基的二氯硅烷与甲基二苯基氯硅烷为原料，在甲苯中以金属钠共缩合的方法，合成了可流动的聚硅烷。

As our studies showed, silylation of mesoporous molecular sieves with alkoxysilane was an usual method of linking desired organical groups. However, as a result, the a lot of silanol groups still existed on the surface of mosoporous molecular sieves after silylation, which maybe affect the interface property and its catalystic activity. Based on this consideration, a novel method was proposed that a mixture of trichlorosilanes was used to silylate mesoporous molecular sieves, introducing both the further reactive group and hyhrophobic methyl group in one pot.

正如研究表明，通过硅氧烷与介孔分子筛表面的硅羟基反应是常见的键连有机基团的方法，但表面仍会剩余较多的硅羟基，硅羟基的存在会严重影响到介孔分子筛表面性质及催化活性，为此笔者提出采用混合的三氯化硅烷一步硅烷化介孔分子筛，在孔道内同时引入可进一步功能化的氯丙基或氯苄基和疏水性的甲基。

Ambient temperature self-crosslinking acrylic latexes were prepared through semicontinuous emulsion polymerization using 3 different polymerizable alkoxysilanes, i.e. vinyl tri silane (A172), Vinyl triethoxy silane and γ-methacryloxypropyl trimethoxy silane (A174). The hydrolysis of these siloxanes under different pH was characterized, and dependence of the latex and polymer properties on these siloxanes and their incorporated amounts in the polymers was studied.

使用三种含不饱和双键硅氧烷，乙烯基三硅烷(A172)、乙烯基三乙氧基硅烷和γ-甲基丙烯酰氧丙基三甲氧基硅烷(A174)为功能单体，采用半连续乳液聚合法制备了室温自交联丙烯酸酯乳液，探讨了硅氧烷功能单体在不同pH条件下水解情况以及其种类和用量对乳液及乳胶膜性能的影响。

Ferric chloride catalyzed direct conversion of carbonyl compounds to the corresponding chloride with silicon hydride ( dichloromethylsilane , chlorodiphenylsilane or trichlorosilane) was realized.

在甲基二氯硅烷作用下，FeCl3能催化羰基化合物的还原氯代反应，得到相应的氯代产物；在甲基二氯硅烷、PBr3或NaI作用下，FeCl3可以催化羰基化合物的还原溴代或碘代反应，分别以良好的收率得到相应的溴代烷或碘代烷

A kind of silica loaded cerium dioxide particles was prepared by the sol-gel method and the heat-resist performance of the silica loaded cerium dioxide particle added silicon rubber materials improved evidently as compared with that of the purely silica added materials.

研究了两种硅烷偶联剂——乙烯基三乙氧基硅烷(A-151)和乙烯基三特丁基过氧硅烷对高硬度硅橡胶性能的影响，比较发现A-151不但可以显著改善高硬度硅橡胶的回弹性，而且使用方便、成本较低。

Polyborosilazane, a precursor to SiBNC ceramic, was synthesized via cocondensation approach using methyldichlorosilane (MeHSiCl2), boron trichloride (BCl3) and hexamethydisilazane as starting materials. SiBNC ceramics were obtained by pyrolysing the as-synthesized PBSZ in N2 or NH3/N2 atmospheres.

以甲基氢二氯硅烷、三氯化硼、六甲基二硅氮烷为起始原料，采用共缩合原理合成了聚硼硅氮烷先驱体，将PBSZ分别在N2和NH3/N2气氛中高温热解得到SiBNC陶瓷。

S:The kind and synthesis of sulfur-containing organosilane s coupling agent were summarized, and application of the organosilane coupling agent to tire tread was described in detail.

概述了含硫硅烷偶联剂的种类、合成方法，详细介绍了含硫硅烷偶联剂在轮胎胎面胶中的应用，并对国内外含硫硅烷偶联剂的市场情况作了介

The reaction result showed that the reactivity of Grignard reagent was different in THF and diethyl ether when subjected to substitution reaction, which gave three products with different substitution degree.

研究表明，生成的Grignard试剂在THF和乙醚中的反应性不同，与甲基三硅烷或四乙氧基硅烷发生取代反应时生成不同取代度的产物，控制反应条件可得到以单取代、双取代或三取代硅烷为主的产物。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。