carboxylic ester
英
美 [kɑrbɔkˈsɪlɪk ˈestər]
网络 羧酸酯
双语例句
- Polyoxyethylene sorbitan carboxylic ester polyvinyl methylether-maleic anhydride copolymer
聚氧乙烯山梨糖醇酐羧酸酯聚乙烯甲基醚-马来酐共聚物 - Research Progress of Deprotection for Carboxylic Ester of Cephalosporins
头孢菌素羧基保护基的脱除方法研究进展 - Study on Synthesis of α,β- Unsatura Ted Carboxylic Acid Hydroxyethyl Ester by Boron Trifluoride Ethyl Ether and Catalytic Promoter System
三氟化硼乙醚催化合成α，β不饱和羧酸羟乙酯的研究 - Synthesis of the ESA-SSS Copolymer and Determination of Properties Scale Inhibitor polyoxyethylene sorbitan carboxylic ester
环氧琥珀酸&对苯乙烯磺酸钠共聚物的合成及阻垢性能评定聚氧乙烯山梨糖醇酐羧酸酯 - Introducing electron-withdrawing groups, such as carboxylic ester groups, compensate part of negative shift of the reduction wave due to the effect of the saturation of a fullerene double bond.
引入具有拉电子性质的基团，如羧酸酯基，则会部分抵消由于C60共扼结构被破坏而引起的电位负移，结果使得电位负移值减少。 - The results indicate that the properties of the metal ion in complex have multiple effects on the hydrolysis of carboxylic ester.
研究表明，金属离子的性质对羧酸酯水解过程的影响是全方位的。 - The results of application evaluation indicate that this mixed carboxylic ester is a kind of flotation agent for coal preparation with good performance.
经应用评价结果表明，该羧酸混合酯是一种性能优异的选煤浮选剂。 - Synthesis of alkyl phenyl cyclohexane carboxylic ester liquid crystals
烷基苯基环己基甲酸酯类液晶的合成 - Light ageing properties of poly ( vinyl chloride)( PVC) by the carboxylic ester rare earth salt and the organotin have been compared by artificial ageing test.
用人工老化的方法比较了羧酸酯稀土和有机锡对聚氯乙烯（PVC）的光老化稳定作用。 - Carboxylic Ester Hydrolysis Catalyzed by 2-Aminopyridine Metal Complexes
2-氨基吡啶金属配合物对羧酸酯水解的催化作用 - Enzymatic ammonolysis of carboxylic ester with ammonia as the acyl acceptor is a novel reaction which was discovered in the mid of 1990s.
有机介质中的酶促酯氨解反应是20世纪90年代中期发现的以氨为酰基受体的新反应。 - In this paper several extractants containing a thioether group and another group such as carboxylic acid, ester or amide were synthesized.
本文合成了分子中含有硫醚基团和另一个基团如羧酸、酯、酰胺的萃取剂。 - Catalytic synthesis of Isoamyl carboxylic ester with heteropoly complexes as catalysts
杂多配合物催化合成羧酸异戊酯的研究 - 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。 - Hydrolysis and decarboxylation reaction: In acid condition, the β-carbonyl carboxylic ester was hydrolyzed to give β-carbonyl carboxylic acid, and the β-carbonyl carboxylic acid was decarboxylated to give 2-methoxy-4 '-trifluoromethyl acetophenone.
水解脱羧反应：β-酮酸酯在酸性条件下水解生成β-酮酸，β-酮酸脱羧，即得产品2-甲氧基-4'-三氟甲基苯乙酮。 - Study on synthesis of 4-ethyl-4 '-cyano-phenyl carboxylic ester
对乙基苯甲酸对氰基苯酚酯的合成研究 - Ethyl-4 '-cyano-phenyl Carboxylic ester, a liquid crystal compound, was prepared from ethyl benzene by reaction of Friedel-Crafts, haloform, acylation and esterification in 44.8% overall yield.
以乙基苯为原料，经付-克反应、卤仿反应、酰化和酯化合成了液晶化合物对乙基苯甲酸对氰基苯酚酯，四步总收率44.8%。 - The interchangeableness between r_1 and r_2 groups in carboxylic ester molecules and its application
羧酸酯分子中R1与R2的互换特性及其应用 - Preparation methods and degradation behavior for poly ( carboxylic acid silyl ester) s were reviewed.
综述了聚羧酸硅基酯的合成方法和降解性质。 - The progresses in the methodology for the reso lution of racemic 1,1 ′ bi naphthol via cyclic phosphate, carboxylic ester, carbonate, ether, borate, inclusion crys tallization and enzyme catalytic hydrolysis were reviewed.
综述了外消旋1,1′-联-2-萘酚拆分方法学研究进展，包括环磷酸酯法、羧酸酯法、碳酸酯法、环状醚法、环硼酸酯法、包合物结晶法、酶水解法。 - 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。 - Research and Development of Catalysts for Synthesizing Unsaturated Carboxylic Ester
不饱和羧酸酯合成用催化剂研究进展 - Carboxylic Ester Hydrolysis Catalyzed by Cu ( II) Complex of Macrocyclic Polyamine
四氮杂大环铜（II）配合物催化羧酸酯水解研究 - The title catalyst was used for preparing monohydric alcohol acetate, dihydric alcohol acetate and other carboxylic acid ester.
将所研制的层状表面相锆基固体酸催化剂用于一元、二元醇醋酸酯和其他羧酸酯类产品的合成，考察了其催化性能。 - Crossed ester condensation reaction: Starting from methyl 4-trifluoromethyl benzoate and methyl methoxyacetate, β-carbonyl carboxylic ester was synthesized in basic condition via crossed ester condensation reaction.
酯缩合反应：用甲氧基乙酸甲酯和4-三氟甲基苯甲酸甲酯为原料，在碱性条件下进行交叉酯缩合反应，同时消去甲氧基生成β-酮酸酯。 - The results indicated that both the organic carboxylic ester and inorganic nucleating agents could decrease the cooling crystallization temperature and increase the melt crystallization temperature of PET gradually.
结果表明，无论是有机羧酸盐成核剂还是无机成核剂都使回收PET的冷结晶温度逐渐降低，热结晶温度逐渐提高。 - It is summarized the lubricating additives of low sulfur diesel fuel such as alcohol, ether, amine, amide, carboxylic acid and ester. Because of its good lubricity, the polyol ester is ideal lubricating additive for low sulfur diesel fuel.
对醇、醚、胺、酰胺、羧酸和酯等低硫柴油润滑添加剂进行了综述，认为多元醇酯具有良好的润滑性，是低硫柴油理想的润滑添加剂。 - Polyethylene glycol carboxylic ester is a kind of multi-purpose macromolecule polymer. It has the widespread application in the chemical industry.
聚乙二醇羧酸酯是一类多功能的大分子聚合物，在化工行业有着广泛的应用。 - In order to investigate the effect of benzylic cyano group or carboxylic ester group in the cyclization step, other types of substrates were synthesized for comparision purpose.
另外，为了研究底物中苄位的氰基（或酯基）在环合反应中的作用，本论文设计出其它类型的底物作对比实验。