1、

The optimal condition: mass ratio of starch and acrylamide 1:2, initiator quality 0.3g, reation temperature 50 ℃ and reaction time 3h was obtained through orthogonal experiments with the target of efficiency of graft, soluble capability and molecular weight of the grafting chain.

通过正交实验,以接枝效率、溶解性能和接枝链上聚丙烯酰胺分子量为指标得出了最佳条件为:淀粉与丙烯酰胺质量比为1:2,引发剂质量为0.3g,反应温度为50℃,反应时间为3h。

互联网摘选

2、

Based on these, anionic ring-opening polymerization of β-butyrolactone was performed using tetrabutylammonium carboxylates ( TBA acetate) as initiator.

以四丁基醋酸铵为引发剂,β-丁内酯为单体进行阴离子开环聚合制备PHB均聚物。

互联网摘选

3、

A new initiator system, di-tert-butyl peroxide in the presence of MgO or BaO, has been proposed for the telomerization of tetrafluoroethylene with lower aliphatic alcohols.

本工作提出了一种新的引发系统即在MgO或BaO存在下的过氧化叔丁基,应用于四氟乙烯与甲醇、乙醇及异丙醇等低级脂族醇的调节聚合。

互联网摘选

4、

Hyperbranched polyacrylate copolymers synthesized by self-condensing vinyl copolymerization in the presence of a tetrafunctional initiator

在四官能团引发剂存在下的自缩合乙烯基聚合反应制备丙烯酸酯类超支化共聚物

互联网摘选

5、

Tetrafunctional peroxide is a new type of initiator for free radical polymerization. The polymerization process initiated by tetrafunctional initiator is more complex since there are more than one active group in it.

四官能度过氧化物引发剂是一种新型的自由基聚合引发剂,其分子中含有四个过氧键,使聚合过程变得复杂。

互联网摘选

6、

The effect of reaction temperature, dispersion medium, stabilizer, initiator, monomer and ferrofluid on the particle size and size distribution were investigated.

研究了前处理方式、反应温度、分散介质、稳定剂、引发剂、单体及磁流体等因素对制备磁性聚合物微球的影响。

互联网摘选

7、

The composition of core and shell monomers, the optimum amount of acrylic acid, nano-silicon sol and initiator, and optimum reaction temperature and dropping hour were defined.

确定了核壳单体组成,纳米硅溶胶、丙烯酸、引发剂等的最佳用量,以及最佳反应温度和滴加时间。

互联网摘选

8、

The emulsion polymerization stability varied with the concentration of initiator and reaction temperature, the optimum value of which are 0.5% ( wt) initiator and 60 ℃.

当引发剂用量为0.5%、聚合温度为60℃时,聚合的稳定性和转化率达到最佳;

互联网摘选

9、

Trace water in the initiator system is an important factor which affects the initiating terminal group structure and the performance of the random copolymer of ethylene oxide and propylene oxide.

引发体系中的微量水分是影响环氧乙烷环氧丙烷无规聚醚起始端基结构,并进一步影响其分子量和使用性能的重要因素。

互联网摘选

10、

For initiator B, when temperature is less than 180 ℃, MAH first reacts with secondary carbon of EB-block, secondly reacts with tertiary carbon; when temperature is higher than 180 ℃, the reaction rate of MAH reacted primary, secondary, tertiary carbon are similar.

对引发剂B,在温度低于180℃之前,仲碳原子最易发生接枝反应,其次是叔碳原子,当温度高于180℃后,伯碳原子、仲碳原子和叔碳原子的反应速率差不多。

互联网摘选

11、

Because of these influences the poem is seen as an initiator of a Romantic tradition of poetry in China.

为什么说《离骚》是中国诗歌浪漫主义的源头?

互联网摘选

12、

The effects of temperature, initiator concentration, emulgent concentration and thioalcohol concentration on intrinsic viscosity of copolymers were investigated.

考察了温度、乳化剂浓度、引发剂浓度及分子量调节剂对三元共聚物特性粘数的影响;

互联网摘选

13、

Photopolymerization of MMA was studied Kinetically using thioxanthone ( TX)/ triethylamine ( TEA)/ oxygen system as initiator. The various factors influencing the polymerization rate were studied.

本文研究了硫杂蒽酮(TX)/三乙胺(TEA)/氧体系引发甲基丙烯酸甲酯(MMA)光聚合的动力学及影响聚合速度的各种因素。

互联网摘选

14、

Yuan Mei was a poet with most liberal ideas in the middle period of the Qing dynasty, an initiator of natural disposition and soul theory and leaders of its poem school.

摘要袁枚(1716-1797)是清代中期思想最解放的诗人,是性灵说的倡导者和性灵诗派的领袖。

provided by jukuu

15、

Storage Reliability Analysis of Explosive Initiator Using Time Series Model

基于时序模型的火工品贮存可靠性分析方法

互联网摘选

16、

Solar irradiation is the fundamental initiator of the different renewable energy alternatives, including wind, wave, hydrogen and biomass energy sources.

在风能,潮汐能,氢能和生物能源中,太阳辐射能是一种不同于其他可再生能源的一种原始能源。

互联网摘选

17、

Research of Influence on Starch Graft Polymerization Reaction of New Type Initiator System

新型引发体系对淀粉接枝共聚反应的影响研究

互联网摘选

18、

Many factors effect on the grafting percentage and the dispersion stability were discussed including the reaction temperature, the initiator concentration, the mass of hydrophilic monomer and the neutralization degree.

研究了接枝温度、引发剂浓度对单体接枝率的影响;亲水单体含量、中和度对接枝共聚物水分散稳定性的影响;

互联网摘选

19、

It systematically studied the influencing effects of reaction temperature, reaction time, initiator ( benzoperoxide), and monomer ( maleic anhydride) on the graft ratio of PP film.

系统研究了反应温度、反应时间、引发剂(过氧化二苯甲酰)和单体(MAH)等对PP膜接枝率的影响。

互联网摘选

20、

In this paper, the RAID system is analyzed together with a brief description of its four parts: target, memory manager, RAID manager and initiator.

分析RAID系统组成,按功能分成target,内存管理,RAID管理和initiator四个部分,对各个部分的功能简单说明。

互联网摘选

  • 今日热词
  • 热门搜索

英语网英语词典(dict.25820.com)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈