乙烯基

Flexibilizing co-monomers were evaluated including both vinyl and allylic types.

Flexibilizing共同单体进行了评价，包括乙烯和烯丙基类型。

At present, the design of new and good photochromic properties of the aryl vinyl compounds is still research in the field of hot spots.

目前， 设计合成新的具有良好光致变色性能的二芳基乙烯类化合物仍然是该领域的研究热点之一。

As references, conventional surfactant sodium dodecylsulfate or the mixture of surfactants sodium dodecylsulfate and nonylphenol polyoxyethylene ether (10) is used in the same polymer systems. Large amount of coagulum is producted during the polymerization, when the polymerizable surfactant from series A is used.

传统乳化剂十二烷基硫酸钠或十二烷基硫酸钠与壬基酚聚氧乙烯醚(10)(NP-10)复配的乳化剂也同样用于聚合以作对比。A系列乳化剂产品产生了大量凝胶，不适宜用于本文研究的乳液聚合中。

The cationic diamide softener can be emulsified by emulsifying agent, and the emulsion of cationic diamide softene can be used as softening agent in Papermaking. The results showed that the emulsion of the cationic diamide softener is stable and homogeneous when the dosage of emulsifying agent cetyltrimethylammonium chloride is 10% in the emulsifying process.

摘 要：以硬脂酸和二乙烯三胺经酰化反应制得二硬脂酰化物，用环氧氯丙烷阳离子化后，再加入乳化剂乳化，可制得带有反应性基团环氧基的新型双酰胺阳离子乳液型纸张柔软剂。

In Chapter 2, the study on PET of the donor/acceptor pair via the rigid bridge, heptacyclo [6.6.0.02,6.03,13.04,11.05,9.010,14] tetradecane, is presented. By using the GMH method, the electronic coupling matrix elements between ground and excited states are predicted.

在第二章，我们研究了对七环十四烷连接儿茶酚和二氰基乙烯构建的分子内光诱导电子转移体系；考察了吸收光谱随溶剂极性变化的影响，预测了该体系的电子转移机理，并利用广义的Mulliken-Hush公式，计算了基态和各激发态之间的电子转移耦合矩阵元。

Mercaptopropyl methyldimethoxysilane was synthesized by thiourea in the presence of tetramethylammonium iodine as a catalyst and mixed liquid containing ethylenediamine and trichloroethylene as a neutralizer, without solvent, in which the reaction temperature, catalysts ,neutralizer and their amounts were optimized.

以四甲基碘化铵为催化剂，乙二胺和三氯乙烯的复合液为中和剂，在无溶剂体系中，用硫脲法合成了甲基巯丙基二甲氧基硅烷。

The toxical effects of nonylphenol ethoxylates and nonyiphenol were studied with EROD in liver of carp as biomarker under external condition. These two tested substances all had activation on EROD enzyme in liver of carp. Under definite range of concentrations, with the affecting rule of inhibiting at high concentration and inducing at low concentration.

在离体条件下，以鲤鱼肝脏EROD酶为生物标志物研究了壬基酚聚氧乙烯醚及壬基酚的毒性效应结果表明，在一定的浓度范围内，2种受试物对鲤鱼肝脏EROD酶均有激活作用受试物浓度对EROD酶的活性的影响规律为高浓度时抑制，低浓度时诱导。

Comb-shaped polycarboxylic -type superplasticizers were synthesized with acrylic acid,mathacrylic acid,sodium allylsulphonateand methoxypolymethacrylatethrough aqueous copolymerization initiated by ammonium persulfate.

将甲氧基聚氧乙烯醚单甲基丙烯酸酯、丙烯酸、甲基丙烯酸和烯丙基磺酸钠进行水溶液共聚，合成了具有梳型结构的聚羧酸系高效减水剂。

It has also been described that the different interaction between host and the anions and the effect of electron – withdrawing group substitution on host-guest interaction from geometry features, frequency analyses, NBO analyses and frontier orbital of interaction.

本文还从几何构型、振动光谱、NBO分析及前线轨道等方面来阐述β-三氰基乙烯取代杯[4]吡咯与不同阴离子氢键相互作用的本质以及吸电子取代基的引入对杯[4]吡咯与F-和Cl-之间主-客体相互作用的影响。

Ethane＞ toluene＞1, 3, 5-trimethylbenzene＞methyl isobutyl ketone＞1, 4-Dioxane＞isoprene＞ 1, 2, 4-trimethylbenzene＞cyclohexane＞1, 3-Butadiene＞methyl butyl ketone were the most reactive VOC species in PRD.

化学活性排名前十位的化合物为：乙烯＞甲苯＞1，3，5-三甲苯＞甲基异丁基酮＞1，4-环氧乙烷＞异戊二烯＞1，2，4-三甲苯＞环己烷＞1，3-丁二烯＞甲基丁基酮。

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。