有机硅的

To decrease maufacture costs and improve the ratio of efficiency and outlay.The not exensive emulsifier, hydrophobe and other adminicle were mixed with self-made polyesters, siloxane-polyester copolymers to obtain defoamers which be better than imported.And the factors in the process of compound were studied particularly and systemically.the prime project is as follows:the siloxane-polyester copolymer is synthesized with PPG2000,PEG400,1% hydrogen-containing Polyhydrosiloxanes, hexane diacid,which mol ratio of materials is 7:3:6:5.emulsifying agents are SP-60 and tw-60,the value of HLB is 8.5.its dosage is 5%.the concentration of control- bubble resin is 5%. the concentration of liquid hydrocarbon A is 20%.

为进一步降低消泡剂的生产成本，提高其使用时的效费比，采用价格低廉的乳化剂、疏水剂及其他助剂与所制聚醚酯、有机硅改性聚醚酯进行复配，制取了性能优于进口产品的优质消泡剂；并对复配工艺各要素进行了详细、系统的研究；最佳配方为：PPG2000、PEG400、含氢量1%的硅油，己二酸以物质的量之比为7：3：6：5制成的有机硅改性聚醚酯，乳化剂选择SP-60/TW-60组合、HLB值为8.5、用量5%，抑泡树脂用量5%，液态烃A用量20%，液态烃B用量10%，疏水剂用量15%～20%。

But it is very difficult to have good mechanics function and antifouling capability if we use organic polymer resin simply.

因此本文通过有机硅单体与丙烯酸酯类单体进行共聚制得具有低表面能特性的有机硅改性丙烯酸树脂。

From the next trend of development, productive capacity of organic single silicon, especially the single methyl chloride silicon hydride, will be enlarged; and on the base of increasing the abilities of all kinds, it will be developed new used-area, and added up to new varieties.

从今后的发展趋势看，有机硅单体特别是甲基氯硅烷单体的生产能力和市场需要将进一步扩大，在提高有机硅产品的各项性能指标的基础上，拓宽应用领域，增加新品种。

A series of silicone materials was introduced, and their pharmaceutical applications were reviewed.

介绍了有机硅材料的种类，综述了有机硅材料在医药领域中的应

The direct synthesis of organosilicon monomer is the key and foundation stone of the global silicone industry.

直接法合成有机硅单体是有机硅工业的关键和基石。

Our country is the most potential market of the organosilicon compounds, and the organosilicon was listed that the nation encourages one of the development industries.

我国是有机硅产品最具潜力的市场，有机硅被列为国家重点鼓励发展产业之一。

In the presence of Pt catalyst, polyhydrodimethylsiloxane reacted with allyl polyoxyethylenepolyoxypropylene ether (F-6) by hydrosilylation to form an intermediate polyether silicone, which further undergo phosphation reaction with phosphorous pentoxide, a kind of phosphate modified polyethersiloxane surfactant was prepared.

采用铂作催化剂，通过含氢硅油和端烯基聚醚（F-6）的硅氢化加成反应先制得聚醚硅油中间体，再将其和五氧化二磷进行酯化反应，制得了一种磷酸酯型有机硅表面活性剂。

The effect of silicon atom in substrate on the reaction rate and the stereoselectivity of enzymatic reactions was revealed by comparison of horse liver alcohol dehydrogenase-catalyzed stereoselective dehydrogenation of the three isomers of acetyltrimethyl propanone and their carbon analogues in aqueous/organic biphasic systems.

本项目通过对比在水－有机溶剂两相系统中，马肝醇脱氢酶催化三甲基硅烷丙酮的三个异构体及其碳类似物的光学选择性脱氢反应，揭示了底物中的硅原子对酶反应速度、立体选择性的影响规律，成功地合成了高对映体纯度的手性有机硅醇，并实现了辅酶的再生。

Organosilicon resin microparticles with phenyl and aminopropyl groups were prepared via the hydrolytic co-condensation of phenyltriethoxysilane,γ-aminopropyltriethoxysilane and diphenyldimethoxysilane under the catalysis of tetramethylammonium hydroxide.

在四甲基氢氧化铵水溶液的催化作用下，将苯基三乙氧基硅烷、γ-氨丙基三乙氧基硅烷和二苯基二甲氧基硅烷进行水解共缩聚制备氨丙基苯基有机硅树脂微粉。

In order to prevent this kind of pollution, often spreads the organosilicon water-repellent, the polymer cement mortar, the emulsion resin, the epoxy resin etc on the inside surface of the quartz stone , although it can have certain protection effect, but also has the following insufficiency: Uses organosilicon water-repellent processing, the quartz stone material, cement and the mortar cannot form a sealed surface layer, is unable to suppress the hoar frost separation and the rain spot effectively; Uses polymer cement processing, not only material itself includes the hoar frost ingredient, moreover the water permeability is big, the protection effect is also not ideal

为防止这类污染，常在石材内面涂上有机硅防水剂、聚合物水泥砂浆、乳液树脂、环氧树脂等，虽能收到一定的防护效果，但也存在以下不足：采用有机硅防水剂处理，石材与砼、砂浆被贴面不能形成密封层，无法有效抑制白霜析出物和润斑；采用聚合物水泥处理，不仅材料自身含有白霜成分，而且水渗透率大，防护效果也不理想

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。