硅氧烷

The results show that polysiloxane is effectively copolymerized with acrylate monomers.

研究结果表明，聚硅氧烷被有效地共聚到丙烯酸酯单体中。

Silsesquioxanes are a large branch of organic-inorganic silicon-containing compounds. They can be represented as RSiO_(3/2_n, where R can be hydrogen or any alkyl, alkylene, aryl, arylene groups, or organo-functional derivatives of them.

倍半硅氧烷是指所有符合经验公式RSiO_(1.5)(这里R代表氢或任何烷基、烯基、芳基或有机功能取代的烷基、烯基、芳基)的有机无机化合物。

By using tetramethylammonium hydroxide as catalyst, a new silicone, amino and long-chain alkyl co-modified polysiloxanes was synthesized by bulk polymerization of octamethylcyclotetrasiloxane (D4), N-β-aminoethyl-γ-aminoproylmethyldimethoxysilane (YDH-602), dodecylmethyldimethoxysilane (HD-109) and hexamethyldisiloxane. The optimum experimental conditions were studied.

以八甲基环四硅氧烷(D4)、长链烷基甲基二甲氧基硅烷(HD-109)、N-β-氨乙基－γ-氨丙基甲基二甲氧基硅烷(YDH-602)和六甲基二硅氧烷为原料，在四甲基氢氧化铵催化下，采用本体聚合反应合成了一种新型硅油－氨基与长链烷基共改性硅油。

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。

Polyether modified polysiloxane is a new multi-functional fine chemical product. And it is made from inarching polyether segment on the branched chain or terminal chain of active polysiloxane.

聚醚改性聚硅氧烷是一类新型的多功能的精细化工产品，它通过活性聚硅氧烷的支链或链端上接聚醚链段而得到。

By taking polysiloxane emulsion as seed emulsion, copolymer latexes of polyacrylate/polysiloxane were synthesized using seeding emulsion copolymerization.

采用聚硅氧烷乳液为种子乳液，将丙烯酸酯和聚硅氧烷进行乳液共聚，合成了该共聚物乳液。

The results show that the sample capacity of the solgel PDMS column is much higher than that of the conventional PDMS column.

实验结果表明溶胶凝胶聚二甲基硅氧烷柱的柱容量远高于传统聚二甲基硅氧烷柱的柱容量。

Interestingly, while we would expect various silicones to have a similar effect, this study showed that silicones alone did NOT reduce cuticle cracking.

有趣的是，我们都会希望多种的聚硅氧烷可以达到相似的效果，但是这个研究表明单个的聚硅氧烷不会对头皮组织开裂起到什么减缓作用。

The properties of methyl(3,3,3-trifluorpropyl)siloxane-dimethyl siloxane copolymer has been investigated in this paper.

摘要］ 研究了三氟丙基甲基硅氧烷/二甲基硅氧烷共聚物的性能，尤其是其低温特性，并与通用氟硅橡胶进行了对比。

Based on its structure and properties the organic/inorganic hybrid of polyhedral oligomeric silsesquioxanes are summarized. And the development tendency of POSS was discussed.

摘要从笼型倍半硅氧烷的结构特点及主要性能方面出发，对笼型倍半硅氧烷的有机／无机杂化改性进行了综合性描述，评述了它们的发展趋势。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。