The rate of reaction is first order with icspect to epoxy group, zero order with respect to methylacrylic acid, and 0.71 order with lespect to quaternary ammonium salt catalyst respectively.
实验证明该反应对环氧基为一级反应,对甲基丙烯酸为零级,对季铵盐是0.71级。
Four new types of organic siloxane surfactants with quaternary ammonium group have been obtained.
通过多步骤合成了四种含有季铵基的有机硅表面活性剂。
The preparation and respective characteristics of polysiloxane with polyether, amino, quaternary ammonium, alkyl and so on functional group are summarized.
阐述了带有聚醚基、氨基、季铵基和烷基等功能基聚硅氧烷的制备方法以及它们各自的特性。
The difference of ammonia, amido, amino group and quaternary ammonium salt, some common wrong expressions on them, and the valence state of phosphorus in some of its oxyacid were pointed out.
指出了氨、氨基、胺基及季铵盐的区别及其常见错误表述,以及磷的几种含氧酸中磷的价态,并着重指出没有“ 次亚磷酸”的叫法。
The catalyst also contains urea and quaternary ammonium groups, and long-fluorine hydrophobic group which can reduce the surface tension of water.
该催化剂同时含有双脲基和季铵盐基团以及疏水基的长氟链。
A group of Quaternary gyttjor are discovered in Rimaqu basin in the Yellow River source area which formed the first terrace foundation, included gravel aleurite, aleurite and clay layer.
在黄河源区支流日玛曲河谷发现第四纪湖相沉积,以含砾粉砂、粉砂、粘土互层组合为特征,形成河流的第一阶地基座。
While, later rifting stage was divided two evolutionary stages which were from Guantao group to Ming-2 member and from Ming-1 member to Quaternary sedimentary period.
新近纪-第四纪的后裂陷阶段可分为二个演化阶段,即馆陶组-明二段和明一段-第四系沉积时期。
The results show that the quaternary ammonium cationic group of the modified products can better treat perchlorate in water.
结果表明,改性产物表面的季铵阳离子基团能较好地吸附废水中的高氯酸根;
Quaternary ammonium salt cationic surfactant containing glucose group was synthesized with ethylene glycol glycoside, N, N-dimethyldodecan-1-amine and epoxy chloropropane.
以乙二醇糖苷、高级脂肪胺及环氧氯丙烷为原料合成了含葡萄糖基的季铵盐阳离子表面活性剂。
Quaternary ammonium salt cationic surfactant containing glucose group was synthesized with ethylene glycol glycoside, N, N-dimethyldodecan-1-amine and epoxy chloropropane.
以乙二醇糖苷、高级脂肪胺及环氧氯丙烷为原料合成了含葡萄糖基的季铵盐阳离子表面活性剂。
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