• 催化剂同时含有季铵盐以及疏水长氟链。

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

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  • 采用电机专用脂后,电机轴承工作温度明显下降,电机故障率明显减少

    The application of special polyurea grease for motor can make the operating temperature of motor bearing fall down obviously and the failure rate of motor reduce also.

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  • 电机轴承专用特点及其电机轴承上的应用效果进行了分析探讨

    The characteristics of special polyurea grease for motor bearing and its application effects are analysed and discussed.

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  • 脲基甲酸可以20系列共聚物分子量最高其次40系列的分子量而得到证实

    The presence of allophanate crosslinks can be proved by the highest molecular weight of 20 series copolymers, followed by 40 (in Table 2).

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  • 采用自制阴离子交换纤维(3-脲基-2-羟纤维素),直接黑染料的静态动态吸附解吸性能进行了研究。

    The static, dynamic adsorption and desorption activities of direct fast black on an anion exchanger fiber 3-Ureido-2-Hydroxypropyl cellulose were studied.

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  • 本文通过检索文献,对类、类、酰四唑类化合物生物活性作了系统论述

    By retrieving concerned Literatures, this article discussed comprehensively the biological activities of phenyl ureas, acyl ureas and tetrazoles.

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  • 制备衍生物方法,衍生物的及其用作农药用途

    Method for producing acyl urea derivatives, salts of said acyl urea derivatives, and the use thereof as pesticides.

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  • 制备并得到了三种二乙酯手性分子晶体结构

    The X-ray crystal structures of three chiral molecular clips based on diethoxycarbonyl glycoluril were obtained.

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  • 设计并合成了23化合物,95个双取代类化合物25个双取代硫类化合物。

    Total 23 compounds of Aroyl thiourea scaffold. 95 compounds of bis-substituted urea scaffold, 25 compounds of thiourea scaffold were designed and prepared.

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  • 结果表明,此类磺酰类化合物除草活性苯环5位取代立体结构电场性质密切相关

    The results show that herbicidal activity is closely related to the steric and electronic properties of the 5-position of the benzene ring.

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  • 化合物生物活性作用机理常见合成方法进行介绍。

    Biological activities, mechanism of action and commonly synthetic methods of acylurea compounds have been introduced.

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  • 为了解决尼尔水利枢纽工程混凝土蜗壳防渗抗冲问题,首次大规模应用了喷涂弹性体技术

    In order to solve the problem of anti-abrasion and anti-seepage of concrete scroll case in Nierji Hydraulic project, the technology is applied into this project.

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  • 因此类化合物合成应用研究成为农药合成领域的一个热点

    Therefore, synthesis and application of the acylureas have become the hot field of the synthesis of the pesticides.

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  • 丙酰二茂铁4-取代反应8相应的缩氨1~8,它们均属首次制得。

    Propionyl ferrocene reacted with 4-substituted semicarbazides converted into corresponding semicarbazones 1-8, which are not prepared previously.

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  • 国内首次将苯噻二唑(TDZ)应用不同因型组织培养中。

    TDZ (Thidiazuron) was used as cytokinin in tissue culture of taro in different genotypes.

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  • 考察了阻燃磷酸浓度、浸渍处理时间阻燃效果影响,研究了绝缘纸阻燃处理后降解参数、剩炭率、击穿电压变化情况。

    Probed the effect of the content of guanylurea phosphate and the soaking time on flame retardation, at the same time the treated insulated paper was studied by thermal analysis.

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  • 本文比较全面论述了酰化合物作用机制、构效关系合成方法安全性以及苯并咪唑类化合物作用机制、安全性和应用情况。

    In the article, we dissertated comprehensively the functional mechanism, the relationship of structure, the synthetical methods and the safety of acylureas and the benzimidazole.

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  • 发明提供了(I)新的磺酰及其多晶型物形式

    The present invention provides novel sulfonylurea salts of a salt of formula (I) and polymorph forms thereof.

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  • 液态橡胶、异氟尔酮二异氰酸酯扩链剂3,6 -二甲-2 ,5 -二甲苯胺为原料,合成了不同硬段质量分数的聚硫硫代聚

    A series of polysulfide based thio-polyurea was synthesized, which were based on isophorone diisocyanate, liquid polysulfide and 2,5-diamino-3,6-dimethylmercapto toluene.

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  • 本文利用大气扫描隧道显微镜对新型有机功能材料--(CPU)聚合物PCPU薄膜进行研究。

    The surface structure of Polymeric 1 Cyano 3 Phenyl Urea(PCPU) film has been studied by scanning tunnelling microscope (STM) under ambient conditions.

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  • 目的研究5,5 二苯乙内酰3 磷酸钠新的合成工艺。

    Objective To study a new synthesis method of 5,5- diphenylhydantoin-3-ylmethylphosphate disodium.

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  • 本文乙腈1,1,3,3-四甲氧丙烷为起始原料,经五反应合成得到磺酰除草剂磺隆。

    Sulfonylurea herbicide Rimsulfuron was synthesized by a five-step reaction starting with 2-(ethylsulfonyl)acetonitrile and 1,1,3,3-tetramethoxypropane.

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  • 本文乙腈1,1,3,3-四甲氧丙烷为起始原料,经五反应合成得到磺酰除草剂磺隆。

    Sulfonylurea herbicide Rimsulfuron was synthesized by a five-step reaction starting with 2-(ethylsulfonyl)acetonitrile and 1,1,3,3-tetramethoxypropane.

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