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This article reviews recent progress in nucleophilic reactions of the α-carbon in vinylidene ruthenium complexes.

文摘:综述了近几年钌亚乙烯基络合物中间体α-碳的亲核反应。

Aluminum vinyl siding News and Information...

乙烯基侧板新闻和信息。。。

The X-Ray is vacuum bagged in ?berglass and infusion-molded in kevlar/carbon with fibreglass/vinylester deck. Equipped as standard with a deep retractable skeg, The X-Ray is available with an optional ingenious retractable rudder and an optional day hatch.

X-Ray 是用袋子抽真空,并通过玻璃纤维/乙烯基塑料甲板,向模具中注入凯夫拉尔合成纤维/碳, X-Ray 可选择性配置灵巧的可收回的舵,以及可选择的仓口。

Vinyl Spooler: Manages and Sends for cutting, artwork that has been converted into a Cut File.

乙烯基后台处理程序:管理和切割,艺术品已成为一个切文件转换发送。

Laminate flooring can be installed over floors like wood, tile, vinyl or linoleum because most of them are floating which means they do not fasten directly to the subfloor.

地板可以安装在像木地板、瓷砖、乙烯基或油毡因为他们大多不佩戴浮动即直接向底板。

Molecularly imprinted polymers of sulfamethazine(SM 2 ) were prepared with silica gel as a sacrificial material, methacrylic acid and 4 vinylpyridine(4 Vp) as functional monomers, glycol dimethacrylate as crosslinker. The polymer properties were investigated by static adsorption experiments. Scatchard analysis shows that the adsorption ability of MAA MIP is superior to that of 4 Vp MIP. The dissociation constant of MAA MIP is 9 59×10 -4 mol/L. The value of apparent binding a...

以磺胺二甲嘧啶为模板分子,分别用甲基丙烯酸和4乙烯基吡啶为功能单体,二甲基丙烯酸乙二醇酯为交联剂,采用牺牲硅胶法合成了磺胺分子印迹聚合物,通过静态吸附实验,系统研究了不同单体对聚合物识别性能的影响;Scatchard分析表明,以甲基丙烯酸为单体的聚合物具有较高的吸附能力,其离解常数Kd为959×10-4mol/L,最大表观结合位点数Qmax为3070μmol/g。

Three methods are used to prepare molecular imprinted polymers,which include conventional bulk technique or polymerization with ultraviolet initiated in low temperature and polymerization with silica-gel as sacrificial materials. In the polymerization procedure , Sulfamethazine(SM2)and Sulfisoxazole were used as target template molecules, methacrylic acid and 4-vinylpyridine(4-VP) and acrylamide were selected as functional monomers, ethylene glycol dimethacrylate as crosslinker, azobisisobutyronitrile was used as initator.

主要工作如下:首先,以磺胺异噁唑和磺胺二甲嘧啶为模板,分别以4-乙烯基吡啶,甲基丙烯酸,丙烯酰胺为功能单体,以二甲基丙烯酸乙二醇酯为交联剂,偶氮二异丁腈为引发剂,采用了传统方法(60℃恒温水浴)、牺牲硅胶法及低温紫外光聚合法等三种方法合成了一系列的磺胺类药物印迹聚合物。

The invention belongs to the synthesis technical field of pharmaceutical intermediates, and more particularly relates to a preparation method of Cis-4-(2-bromine ethylene) benzene sulfonamide.

本发明属于药物中间体合成技术领域,具体涉及一种顺式-4-(2-溴乙烯基)苯磺酰胺的制备方法。

Fluorescence experiment indicated that the characteristic emission intensity of terbium ion was greatly increased and possibly sensitized by gadolinium ion.

铕聚 N 乙烯基乙酰胺是一种无毒、生理相容性好的聚酰胺类高分子,可溶于水和有机溶剂,无低临界溶解温度[3]。

Test results will show that it brings high, stable viscosity, combined with high thixotropy, which

实验结果显示它可以为乙烯基酯树脂提供较高以及较稳定的粘度和触变性,并以此帮助提升您产品的品质,从而使您的客户受益于您的产品。

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推荐网络例句

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。

Store this product in a sealed, lightproof, dry and cool place.

密封,遮光,置阴凉干燥处。