• 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.

    实验证明该反应环氧基为一级反应,对甲基丙烯酸为零,对季铵盐是0.71级。

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  • Four new types of organic siloxane surfactants with quaternary ammonium group have been obtained.

    通过多步骤合成了含有有机表面活性剂

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  • The preparation and respective characteristics of polysiloxane with polyether, amino, quaternary ammonium, alkyl and so on functional group are summarized.

    阐述带有醚基氨基基和烷基等功能基聚硅氧烷的制备方法以及它们各自特性

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  • 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.

    指出氨基铵盐区别及其常见错误表述以及的几种含氧酸磷的态,并着重指出没有“ 次亚磷酸”的叫法。

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  • The catalyst also contains urea and quaternary ammonium groups, and long-fluorine hydrophobic group which can reduce the surface tension of water.

    催化剂同时含有基和季铵盐基团以及疏水基长氟链。

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  • 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.

    黄河源区支流日玛曲河谷发现第四纪沉积,含砾粉砂、粉砂、粘土组合为特征,形成河流的第一阶地基座

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  • 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-第四纪裂陷阶段分为演化阶段馆陶组-明二段明一段-第四系沉积时期。

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  • 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阳离子基团较好地吸附废水中的高氯酸根;

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  • Quaternary ammonium salt cationic surfactant containing glucose group was synthesized with ethylene glycol glycoside, N, N-dimethyldodecan-1-amine and epoxy chloropropane.

    乙二醇糖苷、高级脂肪胺环氧氯丙烷原料合成了葡萄糖铵盐阳离子表面活性剂

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  • Quaternary ammonium salt cationic surfactant containing glucose group was synthesized with ethylene glycol glycoside, N, N-dimethyldodecan-1-amine and epoxy chloropropane.

    乙二醇糖苷、高级脂肪胺环氧氯丙烷原料合成了葡萄糖铵盐阳离子表面活性剂

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