查询词典 polymerization

The polymerization reacts from the inverse emulsion . Selecting white oil as continuous medium , Span60 and TX-10 as the complex emulsifier , AM-01﹑(NH4)2S2O4 and NaHSO3 as new-type complex initiator , the copolymerization of dimethylamino ethyl acrylate methyl chloride/acrylamide was developed . The effects of the concentration of monomer﹑emulsifier and initiator﹑ temperature﹑reaction time and pH on the molecular weight﹑intrinsic viscostity﹑conversion ratio and cation degree of copolymer were studied .

以反相乳液为初始聚合体系，油酸失水山梨醇酯Span60和辛基酚聚氧乙烯醚TX-10构成复配乳化剂，白油为连续介质，AM-01、过硫酸铵和亚硫酸氢钠组成新型复合引发体系，进行丙烯酰胺/（2-甲基丙烯酰氧乙基）三甲基氯化铵的反相准微乳液共聚合，研究了单体浓度、乳化剂、反应温度、反应时间、pH等因素对聚合产品分子量、特性粘数、转化率及阳离子度的影响。

In this project, we have developed and established a new methodology of polymerization, which can serve as a general "pdatform" for manufacturing polymer nanospherical particals with superhigh performance from most olefinic and diolefinic monomers.

本项目发展了一种新的高分子纳米球粒制备技术，研制了超高效纳米球粒制备平台，制备高分子球粒种类包括：单烯和双烯类化合物为单体的系列高分子纳米球粒材料。

The conducting polymer Poly 3,4-Ethylene Dioxy Thiophene thin films was prepared by chemical polymerization. Fourier transform infrared and Scanning Electron Microscope were used to characterize its optical property and morphology. A gas sensor using PEDT thin film was fabricated with the assistance of interdigitated electrodes. The sensitivities of the prepared sensor to toxic NO2 and NH3 and its temperature property were studied.

采用化学聚合法制备了导电聚合物3，4-乙烯二氧噻吩膜，利用扫描电子显微镜和傅里叶变换红外光谱法对薄膜的光学成分及形貌进行了分析，采用叉指电极结构研制出了3，4-乙烯二氧噻吩薄膜气体传感器，研究了3，4-乙烯二氧噻吩薄膜气体传感器对有毒气体NO2和NH3的敏感特性以及其自身的温度特性。

The cyclic dipentene in C 5 raw material was taken off by heat polymerization .

以大庆石化总厂C5馏分为原料，经热聚工艺脱除环戊二烯，采用自制络合AlCl3 催化剂，合成了浅色C5石油树脂。

A molecularly imprinted solid phase extractant, particularly for the recognition of diphenylguanidine was prepared using diphenylguanidine as the template and bulk polymerization.

以二苯胍为模板分子，用本体聚合法合成了对二苯胍具有良好识别能力的分子印迹固相萃取剂。

The polyesters with terminal hydroxyl groups were prepared by condensation polymerization of adipic acid with 1,4-butanediol or ethylene glycol and, in some cases, a little amount of propylene glycol. The polyurethane thermoplastics were then prepared with the polyester, 4,4'-diphenylmethane diisocyanate and 1,4-butanediol.

采用己二酸、乙二醇(或加入少量1，2-丙二醇)和1，4-丁二醇制备了端羟基聚酯，并用该聚酯和4，4'-二苯基甲烷二异氰酸酯、1，4-丁二醇制备了聚酯型热塑性聚氨酯；考察了NCO/OH值、聚酯分子量等因素对热塑性聚氨酯的物理机械性能的影响。

A series of segmented thermally stimulated shape-memory polyurethanes, which consist of polyethylene adipate glycolas the soft segment and 4,4'-diphenylmethane diisocyanate-1,4-butanediol-DPA(which consists of ring components) as the hard segment were synthesized by one-step polymerization.

以聚己二酸乙二醇酯二醇为软段、4，4' -二苯基甲烷二异氰酸酯 1，4 丁二醇含环状结构的扩链剂DPA为硬段，采用一步聚合法制备了一种具有热致形状记忆功能的多嵌段聚氨酯弹性体。

The aqueous polyurethane prepolymer was prepared through step-growth polymerization of diphenylmethane diisocyanate with polyester glycol and dimethylol propionic acid, which was then neutralized by triethylamine to form the stable transparent aqueous polyurethane dispersion.

以二苯基甲烷二异氰酸酯、聚酯二醇、二羟甲基丙酸等为原料合成了水性聚氨酯预聚体，用三乙胺中和制备了水性聚氨酯的透明乳液。

The thermal decomposition yielded unsaturated compound and dithiobenzoic acid, leading to some loss of living character of the polymerization, such as retarded reaction rate and broadened molecular weight distribution.

我们根据合成双硫酯的经验和实验中的观察发现，双硫酯的热稳定性对RAFT聚合影响很大，在较高的温度下双硫酯会发生一定程度的热分解，生成的双硫酸会对聚合有一定的阻聚和延迟作用。

In our previous work,we found that CDB underwent remarkable thermal decomposition at 90～120℃,which yields dithiobenzoic acid and related derivatives,it can affect the polymerization rate, molecular weight,and molecular weight distribution of the resulting polymers.

我们组发现一种常用的链转移剂CDB在加热情况下会发生热分解，分解产生的双硫酸会对RAFT过程产生一定的阻聚影响，同时使聚合部分不可控，即产物分子量不可控和分布变宽。

The objective is to subjugate and discourage the people, because that allows the elite to continue to rule unopposed.

其目的是压制和打击人民的积极性，因为这可以让实权派继续统治不会沦为反对派。

GOD,this is the second time you vanquished me!

天啊，这是第二次你打败了我！