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。
The catalyst also contains urea and quaternary ammonium groups, and long-fluorine hydrophobic group which can reduce the surface tension of water.
采用电机专用聚脲基脂后,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.
对电机轴承专用聚脲基脂的特点及其在电机轴承上的应用效果进行了分析和探讨。
The characteristics of special polyurea grease for motor bearing and its application effects are analysed and discussed.
脲基甲酸酯交联键可以从20系列的共聚物的分子量最高,其次是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).
采用自制阴离子交换纤维(3-脲基-2-羟基丙基纤维素),对直接耐晒黑染料的静态、动态吸附和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.
本文通过检索文献,对苯脲类、酰基脲类、酰基硫脲类及四唑类化合物的生物活性作了系统的论述。
By retrieving concerned Literatures, this article discussed comprehensively the biological activities of phenyl ureas, acyl ureas and tetrazoles.
制备酰基脲衍生物的方法,该酰基脲衍生物的盐,及其用作农药的用途。
Method for producing acyl urea derivatives, salts of said acyl urea derivatives, and the use thereof as pesticides.
制备并得到了三种基于二乙酯基甘脲的手性分子夹的晶体结构。
The X-ray crystal structures of three chiral molecular clips based on diethoxycarbonyl glycoluril were obtained.
设计并合成了23个芳酰基硫脲类化合物,95个双取代脲类化合物及25个双取代硫脲类化合物。
Total 23 compounds of Aroyl thiourea scaffold. 95 compounds of bis-substituted urea scaffold, 25 compounds of thiourea scaffold were designed and prepared.
结果表明,此类磺酰脲类化合物的除草活性与苯环5位取代基的立体结构和电场性质密切相关。
The results show that herbicidal activity is closely related to the steric and electronic properties of the 5-position of the benzene ring.
对酰基脲类化合物的生物活性及作用机理和常见的合成方法进行了介绍。
Biological activities, mechanism of action and commonly synthetic methods of acylurea compounds have been introduced.
为了解决尼尔基水利枢纽工程混凝土蜗壳防渗及抗冲磨问题,首次大规模应用了喷涂聚脲弹性体技术。
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.
因此,酰基脲类化合物的合成与应用的研究已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.
丙酰基二茂铁和4-取代氨基脲反应制得8个相应的缩氨基脲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.
在国内首次将苯基噻二唑基脲(TDZ)应用于不同基因型芋的组织培养中。
TDZ (Thidiazuron) was used as cytokinin in tissue culture of taro in different genotypes.
考察了阻燃剂磷酸脒基脲浓度、浸渍处理时间对阻燃效果的影响,并研究了绝缘纸经阻燃处理后热降解参数、剩炭率、击穿电压的变化情况。
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.
本文比较全面的论述了酰基脲化合物的作用机制、构效关系、合成方法和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.
本发明提供了式(I)的盐的新的磺酰基脲盐及其多晶型物形式。
The present invention provides novel sulfonylurea salts of a salt of formula (I) and polymorph forms thereof.
以液态聚硫橡胶、异氟尔酮二异氰酸酯和扩链剂3,6 -二甲硫基-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脲。
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.
本文利用大气中扫描隧道显微镜对新型有机功能材料腈基-苯基-脲(CPU)的聚合物(PCPU)薄膜进行了研究。
The surface structure of Polymeric 1 Cyano 3 Phenyl Urea(PCPU) film has been studied by scanning tunnelling microscope (STM) under ambient conditions.
目的研究5,5 二苯基乙内酰脲3 基甲基磷酸钠新的合成工艺。
Objective To study a new synthesis method of 5,5- diphenylhydantoin-3-ylmethylphosphate disodium.
本文以乙磺酰基乙腈和1,1,3,3-四甲氧基丙烷为起始原料,经五步反应合成得到磺酰脲类除草剂玉嘧磺隆。
Sulfonylurea herbicide Rimsulfuron was synthesized by a five-step reaction starting with 2-(ethylsulfonyl)acetonitrile and 1,1,3,3-tetramethoxypropane.
本文以乙磺酰基乙腈和1,1,3,3-四甲氧基丙烷为起始原料,经五步反应合成得到磺酰脲类除草剂玉嘧磺隆。
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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