甲基丙烯酸甲酯

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。

OBJECTIVE: To explore mechanical property difference in the different mixing ratio of PMMA.

目的：探讨不同混合比例聚甲基丙烯酸甲酯的力学性能差异。

This Summer, when Neves takes on Taunton native Mike Varner for the second time in three months at the Mohegan Sun Arena (Varner won the "Last Man Standing" MMA title in Fall River last December) Hawes and Harnois will have ringside seats, and in an upcoming episode of Ghost Hunters, so will Neves.

今年夏天，内韦斯时，需对风景如画的本土麦克varner为第二次在3个月内，在舞台上的莫黑根湖畔孙（ varner赢得了"最后的男子站在"甲基丙烯酸甲酯的标题在秋季河在去年12月）霍斯和阿尔努瓦将有ringside议席，并在在即将举行的插曲鬼猎人，所以将韦斯。

The current polymer materials for optical disc substrate usually include polycarbonate, poly, epoxy resins and noncrystalline cyclo-olefin copolymer developed in recent years.

光盘基板材料主要包括传统的聚碳酸酯、聚甲基丙烯酸甲酯、环氧树脂以及近年发展起来的非晶环烯烃聚合物。

For the first time ,AgBr organosol was obtained by using oleic acid to extract and modify the AgBr nanoparticles in hydrosol. And the optimum molar ratio of oleic acid to AgBr nanoparticles was found. AgBr nanoparticles, modified by oleic acid were mixed with MMA. After polymerization was carried out, the polymeric photochromic material was synthesized.

首次采用油酸萃取并包覆了水溶胶中的AgBr纳米粒子，制备了AgBr有机溶胶；并找到了萃取率最佳时的油酸与AgBr的摩尔比；再将油酸包覆的AgBr掺杂到甲基丙烯酸甲酯中，进行本体聚合，从而制备了AgBr光致变色有机玻璃。

By comparing the data of the photopolymerization of methyl methaerylate at 30℃ with those of benzoyl peroxide initiated polymerization at 60℃,it clearly shows that primary radical termination is more important at lower temperature than at higher temperature.

比较甲基丙烯酸甲酯在30℃的光引发聚合和在60℃的过氧化苯甲酰引发聚合的数据，可以看出，初级自由基的终止效应在低温时更为重要。

Then we tested the photosensitivity of POF whose core material was copolymer of azo-benzene and poly in experiment.

其次，对含偶氮苯和聚甲基丙烯酸甲酯共聚的纤芯材料的聚合物光纤光敏特性进行了实验测试。

The latest experimental results of the focusing perfermance of the compound high-energy X-ray lens is designed with PMMA with the parameters of 40 plano-concave elementary lenses positioned in line with axial symmetry, 200 μm radius of the concave surface, 0.15 nm working wavelength, 0.5 mm geometrical aperture and 8 mm length of the compound lens and 1.3 m focus length, are briefly introduced.

报道了这种新型X射线光学元件聚焦性能的最新实验结果。设计的高能X射线组合透镜为聚甲基丙烯酸甲酯材料，包括40个相同的、顺序排布的平凹折射单元，折射单元的球面半径为200 μm，组合透镜的几何口径约为500 μm，长度约为8 mm，焦距约为1.3 m。简要描述了PMMA材料X射线组合透镜的制作技术和制作过程。并给出了X射线组合透镜聚焦性能测试实验系统和实验条件。

The method of emulsion polymerization was used to synthesize polyvinyl acetate resin by adding hard monomer_methyl methacrylate to modify it.

本论文采用乳液聚合的方法合成了聚醋酸乙烯树脂，并通过加入硬单体―甲基丙烯酸甲酯对其进行改性。

Department of Chemistry; Huazhong University of Science and Technology; Wuhan; Post code : 430074

用红外光谱追踪表明，聚氨酯的生成快于甲基丙烯酸甲酯的聚合。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。