查询词典 initiator

Factors exerting influence are discussed, such as amounts of initiator and crosslinker, pH value of water phase, polymerizing temperature, as well as inductive time.

研究引发剂用量、交联剂用量、水相pH值、聚合温度和诱导时间等因素的影响，得出的最佳聚合条件为：引发剂用量为共聚单体质量的0.18%，交联剂用量为共聚单体质量的0.27%，pH值6.5，聚合温度65~75℃，诱导期40~60min。

A novel method combining a conventional free-radical solution polymerization with a chemical saponification was used to synthesize a, cu-dicarboxyl terminated oligo s with molecular weight below 1500. Here, cn-carboxyl terminated oligo s were firstly synthesized by the free-radical polymerization in THF, where 4,4'-azobis(4-cyanovaleric acid) was used as initiator, thioglycolic acid as chain transfer agent, then CTBMA were transformed into di-CTBMA via saponifying CTBMA in dioxane/H_2O/KOH solution.

利用传统自由基聚合法，在四氢呋喃溶液中自由基引发聚合甲基丙烯酸丁酯单体而得到w-羧基-甲基丙烯酸丁酯低聚物(分子量在1500左右)；利用CTBMA 末端酯基的反应特性，在二氧六环／水／KOH混合溶液中皂化CTBMA，使之转化为a ，w-羧基甲基丙烯酸丁酯低聚物；研究了溶剂的类别、反应时间等反应条件对皂化产物结构的影响；利用MALDI-TOF-MS及LSIMS对皂化各阶段产物进行了分析监测。

Moreover, both FTIR and GPC were used to characterize the hairy homopolymers, which were scissored from the shell surface through hydrolysis of the ester group of photo-initiator. In FTIR spectrogram of scissored PVP or PNIPA, characteristic peak of C=S double bond were discovered.

同时，通过水解后从微球表面&剪裁&下来的壳层高分子红外分析表明，高分子链段中均含有碳硫基团，即证明有RAFT试剂的&碎片&存在。

As an initiator of the new Christianity movement in the turn of 19-20th century, in contrast with others, D.Merezhkovsky tries to find instruction of the God in human culture and history as to the mental worlds of great figures like Dante and Napoleon. Through the two critical biographies created in the later years of his life, D.Merezhkovsky re-expounded human culture and sermonized his own religious beliefs.

梅列日科夫斯基是俄罗斯上个世纪之交新基督教运动的发起人之一，与其他思想家一个显著的不同在于，他不是努力建立一套形而上学的神学思想体系，而是走了另一条道路--到人类文化发展的历史遗迹甚至重要历史人物的精神世界中去寻找神的启示，他通过文学创作来再阐释人类文化，为自己的宗教思想布道。

The grafting copolymerization of 2-Acrylamido-2-methyl propane sulfonic acid onto soybean protein isolate was carried out in 8 mol/L urea aqueous solution with ammonium persulphate as initiator and β-mercaptoethanol as protein unfolding agent.

以亲水2-丙烯酰胺基-2-甲基丙磺酸为接枝单体、过硫酸铵为引发剂、β-巯基乙醇为大豆分离蛋白的变性剂，在8mol/L的尿素溶液中对SPI进行接枝共聚改性。

By using chemical modification, ammonium persulphate as thermal initiator, SDS/OP-10 as the compound emulsifier, through emulsion copolymerization with organic silicon monomer(KH-570) and acrlates monomers, the silicone-modified polyacrylate emulsion with excellent properties was synthesized.

本文利用化学改性的方法，在过硫酸铵热引发体系、十二烷基硫酸钠/OP-10复合乳化体系下，通过有机硅单体（KH-570）与丙烯酸酯类单体进行乳液共聚，得到了综合性能良好的有机硅改性丙烯酸酯乳液。

The center in this paper is to assert (1) The CCP is the pioneer of the Chinese national liberation, the advocator, initiator and assertor of the cause of strivings for anti imperialism and the abolition of unequal treaties.

通过对中国共产党整个斗争历程的考察，可以看出：中国共产党是中华民族解放的急先锋，是反帝废约主张的首倡者，也是这一斗争的发动者和坚持者。

The process includes the following steps: dissolving bromine in halogenated hydrocarbon, dropping the bromine solution into reactant system comprising pentabromo toluene, halogenated hydrocarbon, free radical initiator and hydrogen peroxide at 50-65 deg.c, and heating to 60-78 deg.c for reflux reaction until the reactant system becomes transparent; filtering the resultant to obtain solid product, washing with carbon tetrachloride and water separately and vacuum drying to obtain pentabromo benzyl bromide.

具体步骤为：将五溴甲苯、卤代烃、自由基引发剂和过氧化氢组成的反应体系加入到三颈瓶中，将0.07～0.1mol的溴溶于50ml卤代烃配成溶液，在50-65℃温度下滴加到反应体系中，滴加时间为50-70分钟，然后升温至60-78℃温度下回流反应，至反应体系逐渐变透明，且不再产生气泡时，将所得产物过滤，得到固体产物，分别用CCl 4 和水洗涤，真空干燥，即得到五溴苄基溴；其中，五溴甲苯与溴的摩尔比为1∶0.7-1∶1.0，溴与过氧化氢的摩尔比为1∶1.0-1∶1.4，自由基引发剂加入量为五溴甲苯重量的1-10％，卤代烃的加入量为反应体系体积的40％-100％，所用溶剂可以直接进行下一批反应，不需要更换溶剂或蒸馏提纯。

First, the preparation process of low boiling point initiator polyetherswas moditied.

首先，对低沸点起始剂酯醚的合成工艺进行了研究。

The reaction mechanism, by-reaction inhibition, effect of initiator, and monomer on grafted products are studied extensively. Polyethylene grafted with maleic anhydride, as the hot melt adhesive for the aluminum-plastics compound pipe, is also studied as a goal for engineering application.

对反应挤出接枝体系进行了热分析，确定了合理的反应挤出工艺条件：用红外光谱和化学滴定的方法分别对接枝结构和接枝率作了定性表征和定量测定；对三种反应挤出体系的反应机理和副反应的抑制，以及引发剂、单体对接枝产物的影响进行了深入系统地研究；对PE接枝MAH作为铝塑复合管的热熔胶进行了工程化应用研究。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。