查询词典 polymerization

Fischer et al.in 1973. Since these compounds have various particular reactions in organic synthesis,especially in vitamins,peptides,synthesis of anti-cancer drugs and natural products,and as olefins, alkyne polymerization catalysts demonstrated its unique advantages and broad application prospects.

由于这类化合物有各种奇特的反应性能，在有机合成中，尤其是在维生素，多肽，抗癌药物和天然产物的合成，和作为烯烃，炔烃聚合催化剂方面显示出其独特的优越性和广阔的应用前景。

Based on the Amsterdan Dense Function by Computer Molecular Simulation, the theoretical investigations of reactions between CpTiCl〓 and AlMe〓, or different cocatalytic site models of MAO allowed us to reach some significant insights into the mechanisms involved in the formation of active species responsible for ethylene polymerization.

本文采用分子模拟技术，以阿姆斯特丹密度泛函理论为基础，首次对CpTiCl〓和A1Me〓或MAO中不同助催化点的模型进行量化计算，研究了半茂体系催化乙烯聚合过程中涉及活性中心形成的反应机理。

This paper changed traditional process which used the coagulant of polymerization aluminum chloride procedure and selected aluminum sulfate as coagulant.

本文通过改变传统工艺中用聚合氯化铝做混凝剂的做法，选用硫酸铝做混凝剂，确定影响处理效果的因素，得出最佳实验条件。

Polymerization of norbornene was carried out in the presence of a catalyst system consisting of amidogen substituted mono(η~5-cyclopentadienyl)titanium/methyl aluminoxane.

采用胺基取代单茂钛{Cp~*TiCl_2N[Si(CH_3)_3]_2}与甲基铝氧烷组成催化体系催化降冰片烯聚合，得到有一定结晶结构的、可溶的聚降冰片烯。

Moreover, our work can promote the development of the electrochemical polymerization of aromatic amine.

同时本文工作对苯胺类化合物的电聚合性能的研究与发展具有促进作用。

The molecularly imprinted polymer with aminopyrine as template was prepared by in-situ polymerization using a-methacrylic acid as functional monomer and ethylene glycol dimethacrylate as the crosslinker.

本实验以甲基丙烯酸为功能单体，乙二醇二甲基丙烯酸酯为交联剂，采用原位聚合法制备了氨基比林为模板的棒状分子印迹柱。

The anionic polymerization of octamethylcyclotetrasiloxane (D4) catalyzed by tetramethyl ammonium hydroxide in the presence of water under conditions of high temperature and oxygen-off was investigated.

以八甲基环四硅氧烷为单体，四甲基氢氧化铵为催化剂，微量水为链封端剂，进行有水条件下环硅氧烷阴离子开环聚合。

The applied level of operation technology in units like sulfonation, nitration, hydrogenation, polymerization, ammonolysis and separation etc.

十一五的发展战略是充分发挥自身优势，加大投入力度，合理构造产业链，重点发展基础化工、精细化工、农用化工。

By using the OP-10/JFC/ amyl alcohol non-ionic compound emulsifier as stabilizer, about 12% organosilicon was appended after the pre-polymerzation of MA, n-BMA, and MAA acrylate monomer was performed and the temperature was decreased to 62℃, and then the pH value was controlled in 7~8 after the polymerization.

结果表明，以OP-10聚醚渗透剂JFC/戊醇非离子复合乳化剂为稳定剂，在MA、n-BMA、MAA丙烯酸酯单体形成预聚体后降温至62℃，加入12%左右的有机硅单体，反应结束后控制pH值7~8，微乳液具有良好的稳定性，乳胶粒具有翻转型的核－壳结构。

Research on techniques for the synthesis of ACR impact modifier with core-shell structure;2. Preparation of polymer-tungsten-silica composite microspheres with multi-layer core-shell structures;3. Organosilicon-acrylate micro emulsion with core-shell structure was synthesized with OP-10,JFC and amyl alcohol nonionic compounded emulsifier by means of seeded emulsion polymerization.

运用种子乳液聚合工艺以OP-10/JFC/戊醇非离子复合乳化剂合成了具有核-壳结构的有机硅-丙烯酸酯微乳液，研究了复合乳化剂类型、丙烯酸酯单体、有机硅单体加入方式和含量、pH值、硫醇对微乳液聚合过程中稳定性和光泽度的影响，通过差示扫描量热仪和透射电镜对微乳液的结构进行了表征。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。