查询词典 polymerization

The higher temperature of polymerization, the higher conversion of methyl methacrylate.

超声波辐照下，MMA单体的转化率随聚合反应温度的提高而增大。

In this experiment,seed emulsion polymerization of methyl methacrylate was carried out by using SiO 2 nanoparticles as seeds.

本文采用SiO2 纳米粒子作为种子进行了甲基丙烯酸甲酯的乳液聚合。

It was found that the ionic liquid not only increased the selectivity of methyl methacrylate but also inhibited its polymerization.

结果表明，离子液体PF_6不仅能提高MMA的选择性，还能有效防止MMA的聚合，可起到替代阻聚剂的作用。

BACKGROUND: Studies have been proved that different polymerization of poly methyl methacrylate has different mechanical properties, the mechanical properties in different types of PMMA is also different.

摘要背景：已证实不同聚合方式聚甲基丙烯酸甲酯的力学性能不同，且不同种类的聚甲基丙烯酸甲酯的力学性能也存在差异。

The addition of functional monomer methacrylic acid was beneficial to the polymerization stability.

加入功能性单体甲基丙烯酸和丙烯酸都能使聚合反应的稳定性增强，随着MAA用量的增加，聚合反应稳定性呈先增强后下降的趋势。

Low molecular copolymers of stearyl methacrylate and methacrylic acid were used as stablizer for reverse phase emulsion polymerization.

采用具有增稠和抗电解质作用的丙烯酸聚氧乙烯酯活性单体和具有聚合稳定作用的高分子表面活性剂，通过反相乳液聚合法合成了涂料印花用丙烯酸系增稠剂。

The influences of N,N'-methene biacrylamide cross-linker,monomer concentration,polymerization time and temperature on swelling ratio were investigated,and reversibility of the hydrogels under various pH conditions at given temperature.

目的通过合成聚丙烯酸-co-α-甲基丙烯酸水凝胶，研究N，N'-亚甲基双丙烯酰胺交联剂、丙烯酸和α-甲基丙烯酸单体浓度、聚合时间对其水凝胶溶胀率的影响，以及温度和不同pH值时水凝胶的pH可逆性。

In this paper, ultrasonic irradiation was employed to initiate the emulsion and microemulsion polymerization of methyl methacrylate and preparation of composites with some inorganic nanoparticles.

本文采用超声辐照新技术实现了甲基丙烯酸甲酯的乳液聚合、微乳液聚合以及与无机纳米粒子的纳米复合，得到了具有特殊结构与性能的新材料。

The result shows that ultrasonic can not initiate bulk polymerization of methyl methacrylate.

结果表明：该研究范围内，超声波不能直接引发 MMA 单体产生自由基，进行本体聚合。

The core-shell microstructure through in-situ polymerization with calcium sulphate as core and with methyl methacrylate as shell was prepared.

采用界面原位聚合方法，制备以硫酸钙(CaSO4)粒子为核，甲基丙烯酸甲酯为壳的核壳结构。

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。