• 研究钛材反应液相空气氧化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.

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  • 羧酸是一种时常和发生化学反应化合物;

    monocarboxylic acids, a suite of hydrocarbons that readily participate in chemical reactions;

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  • 本文介绍羧酸酯化反应催化剂研究进展

    The paper introduces the catalyst research advances in esterification reaction of carboxylic acid.

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  • 反应酵解羧酸循环关键连接(3)。

    This is a critical link between glycolysis and the TCA cycle (3).

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  • 羧酸还原有机化学中的重要反应

    The reduction of carboxylic acid is an important reaction in organic chemistry.

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  • 通过一元羧酸乙烯反应,我们得到新颖缩醛结构分子玻璃

    A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

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  • 分别使用酸酐相应的游离羧酸酰基给体时反应性能进行比较。

    The performance of the reaction using an acid anhydride as an acyl donor was compared with that using its corresponding free acid.

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  • 通过氧化反应可以由芳香族化合物得到羧酸重要有机中间体精细化学品

    Phenols, aldehydes, ketones, quinones, carboxylic acids and many other important organic intermediates for fine chemicals can be obtained by oxidizing aromatic compounds.

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  • 分析不饱和羧酸酯化反应机理

    The esterification mechanism of unsaturated carboxylic acid was analyzed.

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  • 本文研究了单体质量皂化反应温度、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水剂性能影响

    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.

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  • 采用化学分析光电子能谱esca分析多元羧酸木材交联反应过程主要组分化学结构变化

    Chemical construction changes of components in esterification between wood and polycarboxylic were analyzed by electron spectroscopy for chemical analysis (ESCA) in this paper.

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  • 采用了工业化不饱和多元醇反应单体合成一种减水率,缓凝时间的新型羧酸系高效减水剂

    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.

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  • 硝酸催化,酰溴酸氧化羧酸。本方法具有试剂价廉、反应迅速、操作简便、产率较高特点。

    Under the catalysis of eerie ammonium nitrate, hydrazides can be oxidized to a large amount of carboxylic acids by sodium bromate.

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  • 通过大分子反应,合成了一类羧基磺酸基,支带聚氧乙烯基羧酸高效减水剂

    Polycarboxylate superplasticizer with carboxylic, sulfonation groups in its main chain and polyoxyethylene ether as side chains was prepared by the macromolecular reaction.

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  • 一种碱金属羧酸k- 1000作为甲苯二异氰酸酯(TDI)三聚反应催化剂合成了以TDI三聚体为主要成分的多异氰酸固化剂

    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.

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  • 一种碱金属羧酸k- 1000作为甲苯二异氰酸酯(TDI)三反应催化剂合成以TDI三聚体为主要成分的多异氰酸固化剂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.

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  • 研究十四不饱和羧酸N -苯基二酰亚胺的热聚合反应,以此作为“PMR聚酰亚胺封端选择

    The polymerization of fourteen N-phenyl unsaturated dicarboximides were studied for the selection of capping agents of "PMR" polyimides.

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  • 采用PP熔融接枝MAH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.

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  • 试验结果发现,该类催化剂对酯化反应很高催化活性,可使羧酸获得良好收率

    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.

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  • 乙醛脱氢酶(ALDH)催化乙醛变成相应羧酸化合物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.

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  • 酯化反应常见有机反应通常是催化作用下由羧酸反应生成

    Esterification is a common organic reaction, usually with the catalysis of acid carboxylic acid and alcohol produce ester.

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  • 使所选乳化剂各自羧酸反应生成一种多种羧酸

    Each selected emulsifier is reacted with a carboxylic acid to create one or more carboxylate salts.

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  • 通过沉淀法直接法制备羧酸稀土配合物,与丙烯酸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.

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  • 发明公开氢化上述氢氰化反应制得包含羧酸制备包含羧酸的方法

    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.

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  • 吡啶羧酸新型广谱除草剂灭草烟重要中间体,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.

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  • 摘要通过大分子反应苯甲酸(BA)聚苯乙烯(PS),制得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.

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  • TFE-M_0共聚物通过化学反应转化相应全氟羧酸甲酯树脂

    The copolymer of TFE-Mo was converted to the corresponding perfluorocarboxylic ester resin by chlorination, hydrolysis and esterification.

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  • 二甲苯酚卤代羧酸反应率在81%以上。

    The yield of O-alkylation of 2,5-dimethylphenol with the monohalogen carboxylic esters is above 81%.

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  • 二甲苯酚卤代羧酸反应率在81%以上。

    The yield of O-alkylation of 2,5-dimethylphenol with the monohalogen carboxylic esters is above 81%.

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