硅氧烷

The combined capacity for siloxane and pyrogenic silica is planned to be approximately 200,000 metric tons per year.

该硅氧烷和气相二氧化硅工厂合作项目的一期工程已于2008年11月中旬完工并投入运营。

Caged bicyclic phosphorous quadridentate silicon complex ; phosphorous-functionalized silses-quioxane ; phosphorus/silicon synergistic effect ; epoxy resin

双环笼状四配位硅；双环笼状倍半硅氧烷；磷硅协同效应；环氧树脂

A novel type of caged bicyclic phosphorous functionalized silsesquioxane was synthesized from caged bicyclic phosphorous quadridentate silicon complex in the presence of tetramethylammonium hy- droxide. The product was confirmed by FTIR, 29Si MAS NMR, MS and XRD spectra.

以双环笼状含磷四配位硅为前驱体，四甲基氢氧化铵为催化剂反应得到具有高度对称结构的双环笼状磷酸酯取代倍半硅氧烷，通过红外光谱，29Si固体核磁共振谱，质谱和X衍射光谱等手段确定了产物的结构和晶型。

Use D4 or DMC,vinyl di-blocking agent,ringy vinyl,hexamethyl-disiloxane as raw materials,tetramethyl hydroxyl ammonium as catalyst,we synthesized a vinyl silicone oil.

以D4，乙烯基双封头，乙烯基环体，六甲基二硅氧烷等为原料，四甲基氢氧化铵为催化剂合成了摩尔质量和乙烯基含量不同的乙烯基硅油；以高含氢硅油，含氢双封头，D4合成实验所需的含氢硅油；以白碳黑为填料通过密炼等工序制备了医用高透明液体注射硅橡胶。

The right formula of the TiO2 sol was found through discussing the influence of acetic acid and hydrochloric acid. Then in different factors such as temperature, pH value had been studied the experiments of the influences upon the time of TiO2 sol into gelation.On the surface of the textiles treated with the sol-gel process may form a thin sporous oxide film.

本论文将成功制备的稳定透明的TiO_2水溶胶用于纯棉织物后整理上，使织物具有一定的屏蔽紫外线和拒水的性能，并且研究了TiO_2水溶胶与环氧基改性硅氧烷水溶胶复合使用，对直接染料染色的织物进行后整理，能起到较好的固色效果。

Disclosed is a polyimide resin having a glass transition temperature of 200-320 DEG C and containing a siloxane diamine residue, a fluorene diamine residue and a specific tetracarboxylic acid dianhydride residue at certain ratios.

本发明提供玻璃化转变温度为200～320℃，以特定比例含有硅氧烷系二胺残基、芴系二胺残基和特定四羧酸二酐残基的聚酰亚胺树脂。

Ingredients:Rose extract, whitening factor, dimethyl siloxane, tetradecanoic acidisopropyl, cetearyl alcohol, rrimethylglycine, glycerol, xanthane, bisabolol.

成分：玫瑰提取液，美白因子，二甲基硅氧烷，肉豆蔻酸异丙酯，十六十八混合醇，三甲基甘氨酸，甘油，汉生胶，红没药醇。

Ingredients:olive extract,whitening factor,dimethyl siloxane, tetradecanoic acidisopropyl, cetearyl alcohol, rrimethylglycine, glycerol, xanthane, bisabolol.

成分：橄榄提取液，美白因子，二甲基硅氧烷，肉豆蔻酸异丙酯，十六十八混合醇，三甲基甘氨酸，甘油，汉生胶，红没药醇。

And the healing agent containing both multiply vinyl group and double SiH bonds was prepared by reducing the oligomer by lithium aluminum tetrahydride.,dichloropolymethylvinylsiloxane was prepared by hydrolyzing partially of MeViSiCl2 under nitrogen protected in ether.

甲基乙烯基二氯硅烷在氮气保护下，以乙醚为溶剂进行非充分水解，得到，二氯聚甲基乙烯基硅氧烷，再经过LiAlH4还原可得兼有多个乙烯基和两个SiH键的自修复单体。

The experimental results shows, if the ratio between MS-1 and OP-10 rangs from 1:1 to 3:l,and the total dosage of them is about 20% of Octamethylcyclotetrasiloxane (D4 ) in quality, we can obtain a kind of stable seeded emulsion of organic silicone modified acrylic ester emulsion. At the same time, if the ratio between MS-1 and Tetramethylammonium Chlorideis l:1.7,the total dosage is about 50% of D4 in quality; the ratio between MS-1 and Cetyltrimethylammonium Chlorineis 7:1, the total dosage is about 25% of D4 in quality,we can also obtain stable seeded emulsions. But if the complex emulsifier system is made of TMAC and OP-10, MS-1 and Peregal O or CTAC and Span-80, we can not synthesize any kind of satisfactory seeded emulsions.

实验结果表明：当MS-1与OP-10的质量比为1：1～3：1，总用量为八甲基环四硅氧烷(D_4)的20％左右时，可合成稳定性良好的硅丙种子乳液；MS-1与四甲基氯化铵的质量比为1：1.7，总用量为D_4的50％左右，MS-1与十六烷基三甲基氯化铵的质量比为7：1，总用量为D_4的25％左右时，亦能得到稳定的硅丙种子乳液；而TMAC与OP-10、MS-1与Peregal O以及CTAC与Span-80的复合体系作为乳化剂时均不能得到满意的硅丙种子乳液。

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。