查询词典 polystyrene

Different grades of crystal polystyrene molding pellet s range from 150, 000 to 350, 000 weight average molecular weight

不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150，000-350，000。

The data acquired in water and polystyrene phantom were consistent for plane-parallel chambers.

结果发觉平行板游离腔用於水假体与固態假体中所得之值都相当一致。

Synthesis and characterization of Octa polyhedral oligomeric silsesquioxanes and Poly and their polystyrene composites enhanced combustion properties.

使用正硅酸乙酯和四甲基氢氧化铵，采用水解缩合的方法制备笼型八八硅酸盐，将其作为聚苯乙烯树脂的添加剂，采用熔融共混的方法制备了TMN-POSS／PS复合材料。

The polystyrene ICF target material doped with nanometer magnetic Fe3O4 particle was prepared to fabricate the magnetic target without a support rod used in ICF experiment.

为实现惯性约束核聚变中无接触点打靶实验构想，探索在聚苯乙烯中掺杂纳米磁性粉体，以制备磁性靶丸。

Polyethylene has excellent volume resistivity and surface characteristics similar to polystyrene.

聚乙烯具有与聚苯乙烯类似的、极好的体电阻率和表面电阻率。

Companies operating various types of professional domestic plastic raw materials imports, mainly polypropylene, high-low pressure polyethylene, linear polyethylene, polystyrene, polyvinyl chloride, sulphur and some engineering plastics, turnover amounted to three billion Yuan.

公司专业经营各类进口国产塑料原料，主要有聚丙烯、高低压聚乙烯、线性聚乙烯、聚苯乙烯、聚氯乙烯、部分工程塑料及硫磺，年营业额达到叁亿多元人民币。

First use soap-free emulsion preparation for polystyrene spheres, and the kernel, Reuse are silicon acetic tetraethyl ortho-silicate in ammonia catalytic hydrolysis, formed under the condition of silica, charged by six water or their cerium, six of methylene amine solution HMT (4) into the negatively charged, uniform cerium oxide coated surfaces to PS microspheres, core-shell structure of PS - CeO2 and PS - SiO2 composite microspheres.

首先用无皂乳液制备了聚苯乙烯微球，并以此为内核；再利用正硅乙酸乙酯在氨水催化条件下水解，形成带负电性的二氧化硅，或者利用六水亚硝酸铈、六亚甲基四胺水溶液分解出带负电性的氧化铈，均匀的包覆到PS微球表面，形成核-壳结构的PS-CeO2和PS-SiO2复合微球。

The RAFT controlled growth of hydrophobic block led to the formation of well-defined poly-co-polystyrene amphiphilic copolymer, which was able to work as a polymeric stabilizer (self-stability). Finally, very stable latex was prepared, having no visible phase separation for several months.

这种方法在超声细乳化之后得到细乳液之后，不需要进一步搅拌，在加热聚合条件下即可最终形成自身非常稳定的乳液，该乳液放置一年时间仍(来源：Ad8B6969C论文网www.abclunwen.com)保持稳定。

The invention is characterized in that the carrier is produced through the reaction between halogen acetylized crosslinked polystyrene resin and hydroxybenzyl alcohol.

本发明的特征是：该载体由卤乙酰化聚苯乙烯树脂与对羟基苯甲醇反应制得。

The invention adopts halogen acetylized crosslinked polystyrene resin and hydroxybenzyl alcohol as the raw material, and the solid phase synthesis carrier with hydroxymethyl as the active group is synthesized through the joint catalysis of N, N-dimethyl formamide used as the reaction solvent, inorganic base and phase-transfer catalyst.

本发明采用卤乙酰化交联聚苯乙烯树脂和对羟基苯甲醇为原料，在以N，N-二甲基甲酰胺为反应溶剂、无机碱及相转移催化剂的共同催化下合成了一种以羟甲基为活性基团的固相合成载体。

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。