查询词典 methacrylate

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 polymer was prepared by copolymerizing vinyl sulfonate, methyl methacrylate and methacrylic acid in different proportions.

三元树脂由乙烯基磺酸酯、基丙烯酸甲酯甲基丙烯酸不同的配比共聚而成。

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。

Polymer A is a acrylic copolymer containing 70% by weight of methacrylic acid and 30% by weight of methyl methacrylate prepared by a catalytic chain transfer method to give a polymer having a number averaged molecular weight of approximately 600 as measured by GPC.

聚合物A是丙烯酸共聚物其含有甲基丙烯酸重量70％，按重量的30％甲基丙烯酸甲酯的催化链转移的方法准备给予聚合物具有的平均人数约600分子量为由GPC测定。

Pb and Fe as promoters, Pd/CaCO3 Lindlar catalysts were modified by impregnation method of fractional steps on unique supports. The new catalysts were prepared for one-step oxidative esterification of methacrole to continuously synthesis methyl methacrylate.

以Pb、Fe为助剂用分步浸渍法在特制的载体上改性Pd/CaCO3催化剂，制备了用于甲基丙烯醛一步氧化酯化液相连续法制备甲基丙烯酸甲酯的新型催化剂。

In our country, the acetone is mainly used to produce solvent, acetone cyanide alcohol / methyl methacrylate, methyl isobutyl ketone, bisphenol A, medicines and rubber additives.

国内丙酮主要用于溶剂、丙酮氰醇/甲基丙烯酸甲酯、甲基异丁基酮、双酚A、医药以及橡胶助剂等。

A novel radical polymerization, polymerization of Methyl methacrylate in the copper alginate complex membrane-HSO_3-H_2O system was studied.

本文研究新的聚合反应体系，甲基丙烯酸甲酯在褐藻酸铜络合物膜-HSO_3~--水体系中的聚合反应。

Polymerization of Methyl methacrylate initiated by Na2SO3/H2O system is investigated, and the factors that influence polymerization rate and molecular weight are also discussed.

实现了亚硫酸钠水溶液可以引发甲基丙烯酸甲酯的聚合，并进一步研究了各种因素对聚合速率和聚合物分子量的影响。

Methyl methacrylate is a monomer that is used to polymerize the organic glass and the MBS resin.

甲基丙烯酸甲酯是合成有机玻璃及MBS树脂的单体。

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。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。