查询词典 trimethyl

Copolymer of acrylamide and acryloyloxyethyl trimethyl ammonium chloride was prepared by dispersion polymerization in a salt solution.

摘 要：以丙烯酰胺和丙烯酰氧乙基三甲基氯化铵为共聚单体，采用分散聚合法在无机盐水溶液中制备了性能稳定的阳离子聚丙烯酰胺乳液。

Copolymer of acrylamide and acryloyloxyethyl trimethyl ammonium chloride was prepared by dispersion polymerization in a salt solution.

摘 要：以丙烯酰胺和丙烯酰氧乙基三甲基氯化铵为共聚单体，采用分散聚合法在无机盐水溶液中制备了性能稳定的阳离子聚丙烯酰胺水包水乳液。

Copolymerization of acrylamidewith(2methacryloyloxyethyl)trimethyl ammonium chlorideinitiated by plasma in aqueous solution was studied.

季铵盐型阳离子聚电解质在污水处理、造纸、采油等许多领域的应用越来越得到人们的认同。

Nano-CaCO3 in water phase was modified with a trimethyl ammonium cationic surface treating agent via wet route.

研究了在水中利用季铵型阳离子表面活性剂对纳米CaCO3进行表面改性。

OBJECTIVE To prepare thymopentin loaded trimethyl chitosan submicron (Tp5-TMC-SM) and study on stability in vitro and immunoregulation properties in vivo.

目的 制备三甲基壳聚糖载胸腺五肽口服亚微粒(Tp5-TMC-SM)，并研究其稳定性及在体内外的有关性质。

The optimum conditions of preparing quaternary ammonium salt of chitosan were determined as follows: the molar ratio of chitosan to glycidyl trimethyl ammonium chloride 1:3, reaction temperature 80℃and reaction time 10 h.

制备壳聚糖季铵盐的最佳反应条件为：壳(来源：A4040BC论文网www.abclunwen.com)聚糖与环氧丙基三甲基氯化铵的摩尔比为1：3、反应温度是80℃、反应时间为10小时。

Because trimethyl silyl-substitited PPO have similar gas solubility but various diffusivity, difference between gas permeability is mainly caused by gas diffusion coefficient.

故二者气体透过系数的不同主要是由于扩散系数的差异。

The ternary phase diagram of 3-dodecyloxy-2-hydroxypropyl trimethyl ammonium bromideR_(12TAB/benzyl alcohol/water system was drawn based on experimental data.

对于微乳液的形成，醇是非常重要的组分之一，与表面活性剂和水组成的相图研究也一直受到人们的关注[1~4]。

Using dodecyl trimethyl ammonium iodide as collector at pH=7.0 and concentration is 3×10-4mol/L, the A/S of flotation concentrates is 6.82 and Al2O3 of flotation concentrates is 82%.

在pH=7.0时，浓度为3×10-4mol/L，十二烷基三甲基碘化铵做捕收剂时，精矿的A/S为6.82，Al2O3的回收率为82%。

The technology that synthesizing 3-chlorine-2-hydroxy propyl trimethyl ammonium chloride with ethanol as solvent is simple, the consumption is less than other methods, the solvent can be used many times, the quality of the product is stable.

以乙醇法合成3-氯－2-羟丙基三甲基氯化铵工艺简单，耗能较少，溶剂可循环使用，产品性能优良，使用效果好。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。