- 更多网络例句与季铵盐类相关的网络例句 [注：此内容来源于网络，仅供参考]
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The synthesis of benzyl benzoate from sodium benzoate and benzyl chloride by phase transfer catalysis process is studied in the article.
由苯甲酸钠和氯化苄通过相转移催化法合成了苯甲酸苄酯，考察了几种季铵盐类相转移催化剂的亲核取代反应性能。
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The aim of this thesis is to synthesize some new chiral quaternary ammonium salts and bis-quaternary ammonium salts from the popular material------Chloramphenicoland abietic acid, and then we used these chiral quaternary ammonium salts in some substitution reactions and addition reactions in order to research their catalytic action and asymmetric induction.
本文利用廉价易得的手性物质——氯霉素和去氢枞酸为初始原料，合成了几种新的季铵盐类手性相转移催化剂，扩大了手性相转移催化剂的来源，并把它们应用于取代反应和加成反应，以探讨其催化机理和不对称诱导效应。
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This paper reviews the mechanism of the phase transfer catalytic reaction according to the different compositions of catalytists, including quaternary ammonium salts,polyethylene glycols and grown ethers as well as application of the PTC in Organic synthesis , such as the reaction of,nucleophilic substitution,addition,condensation,oxidation-reduction and so on.
综述了在不同催化剂结构下所遵循的相转移催化反应机理，包括季铵盐类、聚乙二醇类及冠醚类催化机理，以及相转移催化在有机合成中的应用，如亲核取代反应、加成反应、缩合反应、氧化还原反应
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The results show that with the content of the synthetic compound increasing, the surface resistivity of PVC materials was decreased.
合成了一种长链季铵盐类化合物，将其用作抗静电剂添加到软质聚氯乙烯材料中，测试了材料的表面电阻、力学性能，并采用扫描电子显微镜测试研究了其结构。
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An antistatic agent of polyacrylamide quaternary ammonium compound was designed and synthesized.
设计合成了聚丙烯酰胺季铵盐类的抗静电剂。
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Quaternary ammonium compound category, ethylene oxide, composite aldehydes, chelating agent, surfactant, the activity factor.
复合季铵盐类、环氧乙烷、复合醛类、螯合剂、表面活性剂、活性因子。
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Category quaternary ammonium compound, ethylene oxide, composite aldehydes, chelating agent, surfactant, the activity factor.
复合季铵盐类、环氧乙烷、复合醛类、螯合剂、表面活性剂、活性因子。
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Quaternary Ammonium Compound, ethylene oxide, composite aldehydes, chelating agents, surfactants, active factor.
复合季铵盐类、环氧乙烷、复合醛类、螯合剂、表面活性剂、活性因子。
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A quaternary ammonium salt compound with a long chain of 12 carbon atoms was synthesized and used as an antistatic agent to be added into plasticized poly, and the structure and properties of such PVC materials were studied by surface resistivity, mechanical property and scanning electronic microscope tests.
合成了一种长链季铵盐类化合物，将其用作抗静电剂添加到软质聚氯乙烯材料中，测试了材料的表面电阻、力学性能，并采用扫描电子显微镜测试研究了其结构。
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Ethylene oxide, composite aldehydes, quaternary ammonium compound category, surfactant, the activity factor, the chelating agent.
环氧乙烷、复合醛类、复合季铵盐类、表面活性剂、活性因子、螯合剂。
- 更多网络解释与季铵盐类相关的网络解释 [注：此内容来源于网络，仅供参考]
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Diazolidinyl Urea：尿素醛
第三类包括季铵盐类(quaterniums)与尿素醛(diazolidinyl urea)等防腐剂,会在产品或皮肤中分解,释放出具有致癌性之甲醛. 经常使用滑石粉为主原料之爽身粉,容易因吸入而引发急性或慢性肺炎与相关疾病,像是滑石病(talcosis)甚至是死亡. 此外,