硅氧烷

Based on optimizing synthetic methods, the thesis used pre-emulsion andpre-polymerization to synthetise membrane emulsion of spacer fluid, Thesynthetic method could well inhibit organosiloxane to hydrolyze andpolycondensate and get stable polymeric emulsion.

在优选合成方法的基础上，采用预乳化预聚合法对隔离液成膜剂FA-1进行了合成，该方法可很好的抑制有机硅氧烷的水解和缩聚反应，能得到聚合稳定的乳液。

The reasons of higher sample capacity of a solgel column have been studied.

对溶胶凝胶聚二甲基硅氧烷柱有较高柱容量的原因进行了探讨。

A novel hydroxyl terminated aminosilicone oil was synthesized using octamethylcyclo tetrasiloxane (D4) and the hydrolysis product of γ-piperazinepropylmethyldimethoxysilane (HD-110) as raw material and potassium hydrate as catalyst.

以八甲基环四硅氧烷(D4)、γ-哌嗪基丙基甲基二甲氧基硅烷(HD-110)水解物为原料，在氢氧化钾催化下，制备了羟基封端的新型氨基硅油。

Cage--like silsesquioxane is a kind of polyhedral compound,which iscomposited of organic and inorganic molecules.The structures of the cage—like silsesquioxane can be determined by 29Si NMR,effectively.Westudied the structures of six kinds of cage—like octa silsesquioxane by NMR.

通过对一类新型含硅材料一笼形倍半硅氧烷结构的研究，总结了这类化合物中29si NMR的影响因素，即取代基R的电负性是影响29si化学位移的主要因素，R电负性增强29Si化学位移移向高场。

Then the surface of the star polymer was intramolecularly crosslinked using octa(3-azidopropyl)polyhedral oligomeric silsesquioxane, POSS-(N_3)_8,as the inorganic multifunctional crosslinker at high dilution concentration via click chemistry,forming a novel POSS/polymer hybrid nanostructure.Thermogravimetric analysis shows that after surface crosslinking, the thermostability of the core crosslinked PS can be remarkably improved.In the second work,we synthesized of a novel polymer with quatrefoil-shaped topology.

接着，我们合成了一种结构规整的含八个叠氮功能团的无机分子—多面低聚倍半硅氧烷，以其为交联剂，我们通过Click反应在即稀浓度下实现了前驱体星型聚合物的分子内表面交联，得到了外层为无机分子交联，内层为有机高分子的星状高分子，这种新型的星状聚合物表现出了优良的热稳定性能。

The title inorganic-organic composite emulsion was prepared by using siloxane modified nano zinc oxide, methyl methacrylate and ethyl acrylate as the raw materials.

采用硅氧烷改性纳米氧化锌与甲基丙烯酸甲酯、丙烯酸乙酯制备了无机－有机复合乳液。

When the zeolite surface with strain ed siloxane linkages or with positive and negative charges is exposed to nitrogen at high temperature, partially dissociative adsorption of nitrogen is expected to take place.

当这种带有有张力的硅氧烷鍵或带有正负电荷的沸石表面与氮气在高温下相接触时，氮气就可能发生部分的解吸附。

This paper is studied on a new synthesis method of epoxy-modified organic silicone micro-emulsion by one step with a silane-alkyl coupling,silicon hydride resin acceptor while opening-cyclo polymerization of the octa-methyl cyclo tetra siloxane,thus the optimal manufacturing conditions are determined by comparing test of their properties.

采用偶联剂缩水甘油醚氧丙基三甲氧基硅烷、八甲基环四硅氧烷开环聚合，探索一步合成环氧基改性有机硅微乳的新方法，通过其性能测试得出最佳工艺条件。

The copolysiloxane PSII3A the raio of fed monomers (M1/M2)=1/9, M1 is 4-undecylen-

比较了异构反应速率和异构转换率，以聚硅氧烷共聚物PSII3A[侧基比(M1/M2)=1/9， M1是对十一烯酰基偶氮苯， M2是对十一烯酰氧对氧基苯酯]为最佳。

It has good chemical stability and physical inertia, non-toxic and non-irritating. It can effectively promote cell regeneration and restoration.

聚硅氧烷树脂，具有优异的化学稳定性和生理惰性，无毒，无刺激性，有效促进细胞的再生和修复。

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。