苯乙烯的

A novel macromonomer,polystyrene capped with thienyl group,which can undergos oxidation coupling polymerization,has been synthesized by anionic polymerization of styrene with butyl lithium as the initiator and 3-bromo-thiophene as the terminator.

以丁基锂为引发剂、四氢呋喃为溶剂，在氮气气氛和-78℃下进行苯乙烯阴离子聚合，并加入 3-溴噻吩作为终止剂，从而合成出末端含噻吩基的聚苯乙烯，它可以进行氧化偶联聚合，是一类新的大分子单体。

Monodisperse carboxylated superparamagnetic polymer composite microspheres with high magnetite content were prepared by miniemulsion copolymerzation,in which acrylic acid and styrene were used as polymeric monomers,and Fe3O4 microparticles were costabilized by undecylenic acid /oleic acid.

在表面由十一烯酸和油酸共同修饰的Fe3O4磁流体存在下，以苯乙烯和丙烯酸为共聚单体，用细乳液聚合法，制备了单分散，高Fe3O4含量，且表面带有羧基的超顺磁性高分子复合微球。

One practical package of technological formula and parameter about electroplating tinting for ABS plastic are provided, including stress riddance, unoil, coarsing, sensitization, activating, revive treatment, and five-colored electroplating tinting .

介绍(丙烯腈/丁二烯/苯乙烯)共聚物制品的表面预处理、化学镀铜、电镀光亮铜和镀铜层着色等工艺，提供了一整套ABS 电镀着色的实用配方和工艺参数，包括去应力、除油、粗化、敏化、活化、还原处理及镀铜层五色系实用着色等。

Optimal reaction conditions were as follows: PAAS and SMA at weight ratio of 4:1, stirring for emulsifying at speed of 1500 rpm and last 60 min, acidifying for 90 min, and the curing temperature under 50℃for 90 min.

优化配方及工艺条件为：聚丙烯酸钠和苯乙烯-马来酸酐按4：1混合作乳化剂，1500rpm搅拌，分散乳化60min，酸化90min，50℃固化90min作为制备二甲戊乐灵微胶囊的优化工艺条件，在此条件下可以得到平均粒径为9.6μm、粒度分布均匀、包封率在99%以上的球形微胶囊。

C for 2-3 hours;(2) fiber-grafted polymer preparation, mixing activated fiber material, phenylethene, acroleic acid, acrylic nitrile, acrylamide, potassium peroxodisulfate and water evenly, proceeding reaction at normal pressure and 50-60 Deg.

II。纤维素接枝聚合物材料的制备，将步骤I制备的活化纤维材料、苯乙烯、丙烯酸、丙烯腈、丙烯酰胺、过硫酸钾和水混合均匀，在常压、50～60℃聚合反应2～4小时，所得反应产物进行干燥。

As superplasticizer , a series of comb-shaped copolymers of polycarboxylic acid were synthesized by polyoxyethylene allyl methyl diether, maleic anhydride, and styrene with different initiators,and esterified with PEO-n.

以聚氧乙烯甲基烯丙基二醚、顺丁烯二酸酐、苯乙烯等为共聚单体，采用不同引发剂，合成了一系列聚羧酸型梳状共聚物超分散剂，并以PEO n单酯化得酯化产物，研究了共聚物的结构、组成、添加量等对水泥粒子分散性能的影响。

I used Styrene Solid rod and brass rod to manufacture the Single Bollards.

我用苯乙烯坚实的控制棒和黄铜棒制造的单一护柱。

It is identified that the peak at -2.45V is styrene or naphthalene, and the peak at -2.80V is conjugated dienes.

分析表明-2.45V处的峰来自苯乙烯或萘，-2.80V处为共轭二烯烃的特征峰。

Then more tar with hydrocarbon substituent is expected than benzene in the engineering application of biomass gasification gas reburning with tar.

本文对所选取的苯、甲苯、苯乙烯和苯酚等典型焦油模型化合物还原NO开展了实验研究，分析各焦油组分还原NO的特性。

Chemically, propolis is exceedingly complex and contains a rich variety of potent terpenes and benzoic, caffeic, cinnamic, and phenolic acids.

从化学成分分析，蜂胶是极度复杂的并且富含了有效的萜烃，安息香酸，咖啡酸，苯乙烯酸和酚酸。

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。