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- polyoxyethylene sorbitan carboxylic ester 聚氧乙烯山梨糖醇酐羧酸酯
- The characteristics of structures and composition for sorption carboxylic esters and polyoxyethylene sorbitan carboxylic esters of typical non _ ionic surfactants are indicated by NMR, MS and IR. 用核磁共振波谱、质谱和红外光谱表征了非离子表面活性剂中山梨醇酐脂肪酸酯和聚氧乙烯山梨醇酐脂肪酸酯的结构特征和它们的组成。
- sorbitan carboxylic ester 脱水山梨醇羧酸酯
- This formula contains carboxylic ester boric acid ester, borate and other inorganic additives as rust prevention additives and lubricating additives. 该配方采用羧酸酯、羧酸醇胺等有机防锈剂与其它无机防锈剂协同防锈,采用合成硼酸酯、硼酸盐和油酸三乙醇胺作为润滑剂和极压剂。
- It is found that incorporation of a trifunctional carboxylic ester or silane coupling agent can improve the adhesion of coatings on glass. 实验发现加入一定量的三官能团酸酯或硅烷偶联剂可以显著提高紫外光固化玻璃涂膜对玻璃的附着力。
- The classification of carboxylic ester hydrolytic reaction mechanism in various conditions are reviewed with 12 references. 综述羧酸酯水解在不同条件下的反应机理的种类及其影响因素。
- Thermal-oxidative stability of poly (vinyl chloride) (PVC) by carboxylic ester rare earth salt (CERES) has been studied during thermoexidativeageing in static condition in air. 用热烘法研究了羧酸酯稀土（CERES）对聚氯乙烯（PVC）的热氧稳定作用。
- The symbiosis of indoor microorganism, kinds of mite and its harm, anti mite agents, test method of anti mite effects as well as the anti mite effect using carboxylic ester are all introduced. 作者从室内尘埃中微生物的共生关系、内螨虫的种类及其危害、螨虫的制剂、螨虫效果的试验方法和羧酸酯类的防螨效果等方面作详细介绍,认为采用化学法防螨整理可获得理想的效果。
- Recent research progresses in the synthesis of carboxylic ester by phase transfer catalyst such as hexadecy trimethylammonium chloride/bromide and tetrabutylammonium chloride/bromid were reviewed. 综述了近年相转移催化法合成羧酸酯所用的各类相转移催化剂,如十六烷基三甲基氯/溴化铵、四丁基氯/溴化铵等,并对其优缺点进行了分析和比较。
- The symbiosis of indoor microorganism, kinds of mite and its harm, anti-mite agents, test method of anti-mite effects as well as the anti-mite effect using carboxylic ester are all introduced. 作者从室内尘埃中微生物的共生关系、室内螨虫的种类及其危害、防螨虫的制剂、防螨虫效果的试验方法和羧酸酯类的防螨效果等方面作详细介绍 ,认为采用化学法防螨整理可获得理想的效果
- polyoxyethylene polyoxyethylene carboxylic ester 聚氧乙烯羧酸酯
- nitro-containing carboxylic ester 硝基酯
- polyethylene glycol supported carboxylic ester 聚乙二醇支载的羧酸酯
- polyoxyethylene carboxylic ester 聚氧乙烯羧酸酯
- glycidyl tertiary carboxylic ester 叔碳酸缩水甘油酯
- The experime nt show this type of column has good column chracter.It has good capability in s eparating alkanes、aromatic hydrocarbons、carboxylic esters and so on. 实验表明,这种色谱固定相对于烷烃、芳香烃、酮、酯类及同分异构体等表现出较好的分离能力,该研究为有机盐固定相的实际应用作了有益的探索。
- Catalystic Synthesis of Carboxylic Ester with Ferric Chloride 氯化铁催化合成羧酸酯
- Carboxylesterase ;Carboxylic Ester Hydrolases ;Pyrethrins ; 羧酸酯水解酶类 ;
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- Keywords synthesis biphenyl carboxylic ester liquid crystals; 合成;手性;联苯甲酸苯酯类液晶;
