苯乙烯的

Radiation-induced grafting of binary vinyl monomers of styrene/ maleic anhydride, St/ dimethylamino ethyl methacrylate and St/ vinyl acetate onto cotton cellulose was carried out byγ- radiation from a60 Co source at room temperature under nitrogen.

在氮气气氛下用γ线辐照的方法在棉纤维上接枝苯乙烯／来酸酐、乙烯／基丙烯酸二甲胺乙酯、乙烯／酸乙烯酯二元单体。

Finally, 4, 4'-diaminostilbene-2, 2'-disulfonic acid with high quality was synthesized from DNS after purification.

研究结果表明，适宜的重结晶温度约为85℃，优化pH值为9~10，以重结晶后所得精制DNS为原料可制备高品质4，4'-二氨基二苯乙烯－2，2'-二磺酸。

Using improved E-screen assay, we found that 1 is a phytoestrogen and has strong estrogenic activity.

其中，kobophenol A(1)是主要组分之一，约占乙酸乙酯部位的20%。1是二苯乙烯类四聚体。

Two novel A-it-A' type benzothiazole-based derivatives with benzothiazolyl, phenyl-acetyl or pyridine cation groups as π electron acceptor, diethenylphenyl as π conjugated bridge: 4-(2-benzothiazolyl) ethenylchalcone (1) and 4-{4-[2-(benzothiazole-2-yl) ethenyl] styryl}-N-methylpyridinium iodide (2) were synthesized.

以苯并噻唑、苯乙酰基和吡啶阳离子为电子受体，二乙烯基苯为共扼桥，合成了两个新的A-π-A'型苯并噻唑衍生物：4-（2-苯并噻唑）－乙烯基查尔酮(1)和4-｛4-［2-乙烯基］苯乙烯基｝－N-甲基吡啶碘盐(2)。

Two novel A-π-A′ type benzothiazole-based derivatives with benzothiazolyl,phenyl-acetyl or pyridine cation groups as π electron acceptor,diethenylphenyl as π conjugated bridge: 4-(2-benzothiazolyl)ethenylchalcone(1) and 4-{4-[2-(benzothiazole-2-yl)ethenyl]styryl}-N-methylpyridinium iodide(2) were synthesized.

以苯并噻唑、苯乙酰基和吡啶阳离子为电子受体，二乙烯基苯为共轭桥，合成了两个新的A-π-A′型苯并噻唑衍生物：4-(2-苯并噻唑)-乙烯基查尔酮(1)和4-{4-[2-乙烯基]苯乙烯基}-N-甲基吡啶碘盐(2)。

A new corrosion-scale inhibitor composed of citric acid/hydroxy ethylidene diphosphonic acid/polyitaconic acid-styrene sulfonic acid copolymer exhibited a good inhibition efficiency on corrosion and scale-forming, it can be used in circulating cooling water systems.

新型缓蚀阻垢剂柠檬酸/羟基乙叉二膦酸／聚衣康酸-苯乙烯磺酸有优良的抗腐蚀性能和阻垢性能，可用于循环冷却水系统。

A novel non - metallocene supported catalyst, CpTiCl2/MgCl2 - SiO2/ MAO ,was prepared, and the catalysis involved in ethylene homo - polymerization, ethylene - 1 - hexylene and ethylene - styrene copolymerization was investigated.

研究开发了一种新型非茂负载聚烯烃催化剂——CpTiCl2/MgCl2-SiO2/MAO，并考察了该催化剂的乙烯均聚、乙烯和1-己烯共聚及乙烯和苯乙烯共聚性能。

1Five novel E-(4-β-D-allopyranosyloxyphenyl)-1-(4-substituted phenyl) propenone derivatives were designed and synthesized by the Claisen-Schimidt reaction with 4-substituted hypnone.

1与4-取代苯乙酮进行Claisen-Schimidt缩合，合成了五个未见文献报道的E-4-β-D-吡喃阿洛糖苷-苯乙烯基-4-取代苯酮衍生物。

Palladium loadings of 1.39%, 3.0%, and 5.85% showed high activity and selectivity in the Heck coupling of iodobenzene with styrene (conversions of 76-84%, selectivities of 84-87%) and methyl acrylate (89-100% conversions and 100% selectivities).

钯全部1.39%、3.0%、和5.85%的表现高活性、选择性与苯乙烯啥米耦合碘(1976年至1984年改建成选择性84-87%)和甲基丙烯酸(89-100转换成选择性和100%)。

The styrene-acrylic emulsion was synthesized using monomer styrene,butyl acrylate,2-hydroxy propylacrylate and monobutyl itaconate.

采用苯乙烯、丙烯酸丁酯及丙烯酸-2-羟基丙酯作主单体，衣康酸单丁酯作功能单体合成了苯丙乳液，比较了功能单体MB I及丙烯酸对苯丙乳液性能(包括耐水性、表面张力、钙离子稳定性等)的影响，用透射电镜观察了乳胶粒子形态。

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。