研究了在钛材反应器中液相空气氧化3,3',4,4'-四甲基二苯乙烷制备3,3',4,4'-二苯甲酮四羧酸的反应规律。
The synthesis of 3,3 , 4,4 -benzophenone tetracarboxylic acid by liquid phase air oxidation of 1,1-bis(3,4-dimethylphenyl)ethane in titanium reactor was studied.
一元羧酸,这是一种时常和烃发生化学反应的化合物;
monocarboxylic acids, a suite of hydrocarbons that readily participate in chemical reactions;
本文介绍了羧酸酯化反应催化剂的研究进展。
The paper introduces the catalyst research advances in esterification reaction of carboxylic acid.
该反应是糖酵解和三羧酸循环的关键连接(3)。
This is a critical link between glycolysis and the TCA cycle (3).
羧酸的还原是有机化学中的重要反应。
The reduction of carboxylic acid is an important reaction in organic chemistry.
通过一元羧酸和二乙烯基醚的反应,我们得到了一种新颖的酯缩醛结构分子玻璃。
A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.
对分别使用酸酐和相应的游离羧酸作酰基给体时的反应性能进行了比较。
The performance of the reaction using an acid anhydride as an acyl donor was compared with that using its corresponding free acid.
通过氧化反应可以由芳香族化合物得到酚、醛、酮、醌和羧酸等重要的有机中间体和精细化学品。
Phenols, aldehydes, ketones, quinones, carboxylic acids and many other important organic intermediates for fine chemicals can be obtained by oxidizing aromatic compounds.
分析了不饱和羧酸酯化反应的机理。
The esterification mechanism of unsaturated carboxylic acid was analyzed.
本文研究了单体质量比、皂化反应温度、皂化反应时间、乳化剂掺量、搅拌速度等工艺参数对多元羧酸系防水剂性能的影响。
The influence of monomer mass ratio, reaction temperature, reaction time, emulsifying agent content and mixing speed on polycarboxylic acid type waterproofing agent were studied in this article.
采用化学分析光电子能谱esca分析了多元羧酸与木材交联反应过程中主要组分的化学结构变化。
Chemical construction changes of components in esterification between wood and polycarboxylic were analyzed by electron spectroscopy for chemical analysis (ESCA) in this paper.
采用了工业化的不饱和聚醚多元醇为反应单体,合成了一种高减水率,长缓凝时间的新型聚羧酸系高效减水剂。
A kind of unsaturated polyether was adopted as the reactive monomer, synthesis a new type of polycarboxylate superplasticizer with high dispersibility and long retention characters.
在硝酸铈铵催化下,酰肼可被溴酸钠氧化成羧酸。本方法具有试剂价廉、反应迅速、操作简便、产率较高的特点。
Under the catalysis of eerie ammonium nitrate, hydrazides can be oxidized to a large amount of carboxylic acids by sodium bromate.
通过大分子反应,合成了一类主链带羧基、磺酸基,支链带聚氧乙烯基醚的聚羧酸系高效减水剂。
Polycarboxylate superplasticizer with carboxylic, sulfonation groups in its main chain and polyoxyethylene ether as side chains was prepared by the macromolecular reaction.
以一种碱金属羧酸盐k- 1000作为甲苯二异氰酸酯(TDI)三聚反应的催化剂合成了以TDI三聚体为主要成分的多异氰酸酯固化剂。
A polyisocyanate curing agent, which is mainly composed of toluene diisocyanate (TDI) trimer, was prepared in the presence of the base metal carboxylate K-1000.
以一种碱金属羧酸盐k- 1000作为甲苯二异氰酸酯(TDI)三聚反应的催化剂合成了以TDI三聚体为主要成分的多异氰酸酯固化剂。对合成工艺条件进行了探讨。
A polyisocyanate curing agent, which is mainly composed of toluene diisocyanate (TDI) trimer, was prepared in the presence of the base metal carboxylate K-1000. The reaction conditions were studied.
研究了十四种不饱和羧酸酐的N -苯基二酰亚胺的热聚合反应,以此作为“PMR”聚酰亚胺封端剂的选择。
The polymerization of fourteen N-phenyl unsaturated dicarboximides were studied for the selection of capping agents of "PMR" polyimides.
采用PP熔融接枝MAH和不饱和羧酸混合单体通过反应挤出增容PP/PA6共混物,研究了增容共混物两相间的界面相互作用。
The interfacial interaction of compatibilized PP/PA6 blend prepared by melt grafting of PP with MAH and other unsaturated acid has been studied.
试验结果发现,该类催化剂对酯化反应有很高的催化活性,可使羧酸酯获得良好的收率。
The results show that they have high catalyzing-activity in the reaction of synthesizing esters such as acetic benzyl-ester, and high yield can be obtained by this new synthesis method.
乙醛脱氢酶(ALDH)催化乙醛变成相应的羧酸化合物的一系列不可逆氧化反应。
Aldehyde dehydrogenases (ALDHs) catalyze the irreversible oxidation of a wide range of reactive aldehydes to their corresponding carboxylic acids.
酯化反应是常见的有机反应,通常是在酸催化作用下由羧酸与醇反应生成酯。
Esterification is a common organic reaction, usually with the catalysis of acid carboxylic acid and alcohol produce ester.
使所选的乳化剂各自与羧酸反应以生成一种或多种羧酸盐。
Each selected emulsifier is reacted with a carboxylic acid to create one or more carboxylate salts.
通过沉淀法和直接法制备羧酸稀土配合物,与丙烯酸等单体共聚反应制备不同稀土含量的稀土有机高分子离聚物。
Synthesises rare earth complex monomer was conducted by sedimentation and direct method. The rare earth organic ionomer was synthesized by copolymerization of acrylic acid monomer.
本发明还公开了氢化上述氢氰化反应制得的包含腈的羧酸制备包含胺的羧酸的方法。
A method of hydrogenating the nitrile containing carboxylic acid acids obtained by above hydrocyanation to produce amine containing carboxylic acids is also disclosed in this invention.
吡啶羧酸酐是新型广谱除草剂灭草烟的重要中间体,文献所介绍的合成方法是以2,3-吡啶二羧酸与乙酸酐反应制得。
Pyridine-2,3-dicarboxylic anhydride, a key intermediate of the herbicide imazapyr, was synthesized from pyridine-2,3-dicarboxylic acid and anhydride according to the methods in the patents.
摘要:通过大分子反应将苯甲酸(BA)键合在聚苯乙烯(PS)侧链,制得芳羧酸功能化的聚苯乙烯psba。
Abstract: Benzoic acid (BA) ligand was bonded on the side chains of polysulfone (PS) via a polymer reaction and obtained aryl carboxylic acid-functionalized polysulfone PSBA.
TFE-M_0共聚物通过化学反应可转化成相应的全氟羧酸甲酯树脂。
The copolymer of TFE-Mo was converted to the corresponding perfluorocarboxylic ester resin by chlorination, hydrolysis and esterification.
二甲苯酚与一卤代羧酸酯的反应产率在81%以上。
The yield of O-alkylation of 2,5-dimethylphenol with the monohalogen carboxylic esters is above 81%.
二甲苯酚与一卤代羧酸酯的反应产率在81%以上。
The yield of O-alkylation of 2,5-dimethylphenol with the monohalogen carboxylic esters is above 81%.
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