硅氧烷

It was found that this polymeric arsine palladium(0) complex is a highly active and stereoselective catalyst for arylation of styrene or acrylic acid.

通过用水合肼对上述聚硅氧烷负载的单齿胂钯配合物进行还原制备了聚硅氧烷负载的单齿胂钯(0)配合物，研究表明它是苯乙烯、丙烯酸芳基化反应的高活性和高立体选择性的催化剂。

Other Ingredients: Purified Soft Water, Green Tea Extract, Dimethicone, Sunflower Oil, Cyclomethicone, Stearyl Alcohol, Aloe Vera Gel, Deep Sea Algae Extract, Almond Oil, Glyceryl Tearate, PEG 100 Stearate, Polysorbate 20, Comfrey Extract, Jojoba Oil, Shea Butter, Kukui Nut Oil, Squalane, Glyceryl Caprylate/ Caprate, Caprylic / Capric Triglycerides, Panthenol (Vitamin B5), Babussu Oil, Marigold Extract, Camellia Kissi Oil, Cetyl Dimethicone, Carbomer, Beta Carotene, Ester-C,(Calcium, Sodium, Magnesium and Zinc Ascorbates, Ascorbyl Palmitate and L-Ascorbic Acid),Evening Primrose Oil, Methylparaben, Propylparaben, Triethanolamine, Phenoxyethenol, Imported Tropical Flower Oils.

其他成分：纯净水软，绿茶提取物，二甲基硅氧烷，葵花籽油，环，硬脂醇，芦荟凝胶，深海藻提取物，杏仁油，甘油Tearate，硬脂酸聚乙二醇100，吐温20，康弗里提取物，霍霍巴油，乳木果黄油，库奎坚果油，角鲨烷，甘油辛酸/癸酸，辛酸/癸三酸甘油脂，泛醇（维生素原B5），Babussu 油，金盏花精华，山茶花基西油，十六烷基二甲基硅氧烷，卡波姆，β胡萝卜素，酯- C中，（钙，钠，镁，锌Ascorbates，抗坏血酸棕榈酸酯和L -抗坏血酸），月见草油，甲酯，尼泊金丙酯，三乙醇胺，Phenoxyethenol，热带花卉进口油。

The method is characterized in that: mixture of macromolecular dihydric alcohol and a dihydroxybutyl-terminated polydimethylsiloxane is dehydrated, added with diisocyanate for reaction, then added with a bis propionic acid, a dihydric alcohol chain extender and a catalyst - dibutyl tin laurate, and is diluted by acrylic ester; temperature reduction and emulsion are performed on the mixture after reaction; chain extension reaction is performed in water by a multi-amine chain extender, and siloxane modified polyurethane dispersoid which contains acrylic ester monomer is prepared; and an initiator - potassium persulphate is added into the siloxane modified polyurethane dispersoid for emulsion polymerization.

特征是先将大分子二元醇与二端羟丁基聚二甲基硅氧烷的混合液脱水后加入二异氰酸酯，反应后加入二羟甲基丙酸、二元醇扩链剂和催化剂二月桂酸二丁基锡，并用丙烯酸酯进行稀释，反应后降温乳化，用多元胺扩链剂在水中进行扩链反应，得到含有丙烯酸酯单体的硅氧烷改性聚氨酯分散体，然后再通过加入引发剂过硫酸钾进行乳液聚合。

This article analyzes the molecular structure of silane and siloxane, intro- duces the method of selecting proper assistant to form a stable system using inorganic compound, silane and siloxane, and studies its performance and impermeability mechanics in concrete and cement mortar.

通过分析硅烷、硅氧烷的分子结构，选择合适的助剂，将无机化合物与硅烷、硅氧烷组成稳定的体系，研究其在混凝土及水泥砂浆中的性能与抗渗机理。

The progress of research methods and the application of polysiloxane-based polymer electrolyte are also introduced.

同时也介绍了聚硅氧烷电解质的研究方法和基于聚硅氧烷电解质的应用研究进展。

The progress of research methods and the application of polysiloxane-based polymer electrolyte are introduced.

同时也介绍了聚硅氧烷电解质的研究方法和基于聚硅氧烷电解质的应用研究进展。

Polyether modified polysiloxane defoaming agent s which was prepared by using hydrogenous polysiloxane and polyether as startintg materials, has good properties.

在聚硅氧烷链段上引入聚醚链段而得到的聚醚改性聚硅氧烷消泡剂是一种性能优良的消泡剂。

The effect of species, level and procedure of adding organic siloxane, content of hydrolyzation inhibiter, pH value and partition of composite emulsifier between nucleus and shell on the stability of acrylate emulsion was studied.

研究了有机硅氧烷单体的种类、用量和添加方式以及水解抑制剂用量、体系的pH值、复合乳化剂的配比对自交联型有机硅氧烷改性丙烯酸乳液稳定性的影响并揭示其规律。

The distribution of main elements in surface and interior of IPNs were also analyzed by XPS.

聚氨酯/聚硅氧烷IPN中聚氨酯的交联反应仍为二级反应，只是聚硅氧烷的存在大大降低了聚氨酯网络的交联速率，并增加了反应活化能。

With polyoxyethylene nonyl phenol ethers (OP-10) as emulsifier and dodecyl benzene sulfonic acid as catalyst, hydroxy organosilicon microemulsion was prepared through octamethylcyclotetrasiloxane (D4) open-ring polymerization under certain conditions.

以壬基酚聚氧乙烯醚(OR-10)作乳化剂，十二烷基苯磺酸为催化剂，通过八甲基环四硅氧烷(D4)开环聚合，在一定条件下合成了端在基聚二甲基硅氧烷微乳液。

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。