苯乙烯

But the conversion is sensitive to steric effects of half-sandwich titanocene and polymerization temperature.

它能产生更多的活性中心，有利于苯乙烯的间规聚合。

In the third chapter, SAR and current advance in the antitumor activity of styryl lactones have been reviewed.

最后一章，综述了苯乙烯-内酯类化合物抗肿瘤活性的研究进展。

General styryl products use of alcohol and petroleum solvent kind of weak solvent-cracking occurs, some substrate materials because of their factors will also cause cracking phenomenon.

凡是苯乙烯成品搁置酒精和火油解溶剂类弱溶剂也会爆发龟裂，一些承印物质料由于本身成分也会导致龟裂的本体爆发。

Through the analysis of the melt-grafting production which is obtained in different time, we can conclude the mechanism is: the St graft onto APP first, and form the stable styryl macroradicals, then MMA block onto the styryl macroradicals.

通过对不同时段的熔融接枝APP产物进行分析，推断其反应机理为：St首先接枝到APP上，形成稳定的苯乙烯大分子自由基，然后再与MMA发生嵌段反应。

This article introduces the naming, properties, usage,chemical structure and sensitization principal of the photoemulsion madeof styryl phridine salts.

本文详细介绍了有机苯乙烯基吡啶盐树脂感光胶的命名、性能特点、用途、化学结构及其感光原理、使用该胶制备网印版的方法及国外应用概况，并对此种感光胶的主要成分的光化反应机理进行了论述。

The coated gloss right from the start of the resin natural resins, to nitrocellulose, styryl, chloroethylene, polyamic, sour, polyurethane, acrylic resin, a wide variety of resin application ever.

涂布光油所用的树脂从一开始的天然树脂，到硝化棉、苯乙烯、氯乙烯、聚酰胺、酸、聚氨酯、丙烯酸树脂等，各种各样的树脂都得到了应用。

In addition to the styryl, BCEA (they contain very high flammability, corrosive acid) and the flammability of the solvent dilution with 10% of the UV/EB finish, EB/UV curing materials is generally not part of the environmental protection regulations set forth in "" hazardous substances (including toxic, corrosive, flammable or lively chemicals).

除了苯乙烯、BCEA（它们含有浓度很高的易燃性、腐蚀性烯酸）和易燃性溶剂稀释配成的EB/UV上光油之外，EB/UV固化材料一般都不属于环境保护条例中规定的&有害物质&（包括有毒、有腐蚀性、易燃或活泼化学物品）。

Novel styryl derivatives with triphenylamine as donor and triazine as acceptor were synthesized. The two-photon absorption cross section for Ⅴ-1,Ⅴ-2 and Ⅴ-3 were determined to be 0.31×10〓cm〓/Gw, 0.365×10〓cm〓/Gw and 1. 64×10〓cm〓/Gw by femtosecond Z-san technology, respectively.

合成了以三苯胺为电子给体、三嗪为电子受体的新型二苯乙烯类化合物，用飞秒开口z-扫描测量化合物Ⅴ-1、Ⅴ-2和Ⅴ-3的双光子吸收截面分别为0.31×10〓cm〓/Gw、0.365×10〓cm〓/Gw和1.64×10〓cm〓/Gw。

Chapter 1. The modification and Structure-Activitity Relationship of Cheliensisin A Cheliensisin A (GC-51), a styryl lactone isolated from Goniothalamus cheliensis, is a potent antitumor compound.

第一章 景洪哥纳香甲素的结构修饰和构效关系研究景洪哥纳香甲素(GC-51)是从景洪哥纳香中分离得到的苯乙烯-内酯类化合物。

First, 4-(2, 3-epoxypropoxyl) benzaldehyde was obtained by reaction of 4-hydroxy benzaldehyde and epichlorohydrin. Then, the Wittig reaction was carried out to convert EBD to styryl glycidyl ether.

首先用对羟基苯甲醛和环氧氯丙烷反应制备4-(2， 3-环氧丙氧基)苯甲醛，然后通过Wittig反应将醛基转化为乙烯基得到含环氧基团的功能性单体苯乙烯基环氧丙基醚，最后用ATRP方法聚合单体SGE得到含环氧侧基的聚苯乙烯。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。