• 本文研究氢氧化铯催化下,三甲硅基乙炔二芳基二硒醚的反应

    It has been researched on the reaction of trimethylsilylacetylene with diphenyl diselenide catalyzed by cesium hydroxide.

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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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  • 采用硫醇碱性条件下定量反应生成双醚的反应原理,建立了甲硫醇的定量分析方法

    The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.

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  • 介绍了乙二醇单异丁反应机理原料摩尔反应温度反应时间等因素对合成反应影响

    This paper dealt with reaction mechanisms and synthesis and the effects of raw materials mole ratio, reaction temperature and reaction time.

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  • 叔丁基羟基茴香(BHA)二叔丁基对甲酚(BHT)氧化特性和/代谢产物也许具有致癌性或致瘤性,不过,同样的反应也有可能应对氧化压力。

    The oxidative characteristics and/or metabolites of BHA and BHT may contribute to carcinogenicity or tumorigenicity; however the same reactions may combat oxidative stress.

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  • 根据碱性条件下水解反应生成原理,研究了甲基硫酸钠废渣原料制备二甲基方法

    Based on the principle of ester hydrolyzation to ether in alkali condition, the process for preparation of dimethyl sulfide from sodium methyl sulfate residue was investigated.

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  • 普鲁兰氨基烃基有机无机盐普鲁兰氨基烃基常规条件下反应获得

    The organic or inorganic acid salts of pullulan aminoalkyl ether can be prepared by reacting pullulan aminoalkyl ether obtained as above with acids in a conventional manner.

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  • 报道二碘化钐作用,硫代氨基甲酸酯发生还原反应,得到较产率的二硫和酰胺化合物。

    This paper reports reductive reaction of the thiocarbamic esters with samarium diiodide to give disulfidesand carboxamides in good results.

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  • 水合反应产物丙酮生成,异丙醇单独进料时产物没有发现丙酮生成。

    It was shown that there was by product acetone in the products of propene hydration etherification, while there existed no acetone in the products of isopropanol dehydration reaction.

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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.

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  • 研究了无催化剂存在时,溶剂硫化钠用量反应时间反应温度氯化硫化钠合成二苄基硫醚的影响

    Effects of solvent, sodium sulfide dosage, reaction time and reaction temperature in syn thesis of dibenzyl sulfide from benzyl chloride with sodium sulfide without catalyst were studied.

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  • 本文研究磺酸化聚苯乙烯树脂酯化酯交换缩醛合成合成(口)呐重排反应中的应用

    This paper reports the study on the sulfonated polystyrene resin used in esterification, transesterification, synthesis of acetals or ketals, synthesis of ether and rearrangement reaction of pinacol.

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  • 甲氧基基团可以纤维素羟基反应形成稳定

    Methylol groups react with the hydroxyl groups of the cellulose to form stable ether linkage.

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  • 阐述二甲基合成反应所用催化剂选择反应催化剂装填高度计算

    This paper expounds the selection of the catalyst of the. synthetic reaction of dimethyl sulfide and the calculation of the loading height of the catalyst in the reactor.

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  • 结果表明热固性酚醛树脂固化过程首先甲基发生缩合反应,缩合反应形成主要的。

    It was shown that the curing process of resoles, at first, proceeded by condensation reaction of methylol groups, and the formation of dimethylene ether linkage was predominant.

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  • 第二金属催化条件下,使第一步产物缩水甘油发生加成反应生成双子表面活性剂中间体低聚二醇。

    The second step, the digomeric glycol-intermediate product of Gemini. surfactant was prepared by opening ring reaction of glycide ether in the presence of potassium as catalyst.

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  • 本文考察了各种工艺条件不同催化裂化汽油馏分反应收率影响各馏分反应特点

    The effects of operation conditions on ether yield of hydro-etherification of three light FCC gasoline fractions and the reaction characteristics of these fractions have been investigated.

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  • 本文首次报道新的高分子固载树脂合成及其水解反应中的应用,此树脂有效三相催化剂

    This paper first reports the synthesis and applications in hydrolysis and etherification of a new polymer supported quaternary ammonium resin, which is an effective triphase catalyst.

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  • 丙烯酸蔗糖代替价格昂贵烯丙基蔗糖作为交联,用过硫酸钾引发剂水溶液反应制取卡波

    Sucrose acrylate is used as a crosslinking agent instead of the expensive sucrose ether, and potassium persulfate is used as a initiator to prepare carbomer in the water solution.

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  • 本文在实验室条件分别JSH-01、JSH-02树脂催化剂摸索出醇烯法合成异丙醚的适宜反应条件。

    Through experiments, the optimal conditions of reaction using JSH-01 and JSH-02 resin catalysts were gained, respectively.

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  • 以高氯酸催化剂,环氧乙烷反应生成分子量分布的乙二醇单低碳醇确定适宜工艺条件

    Reaction of lower primary alcohol and ethylene oxide was studied by zinc perchlorate as catalyst, and the products are narrow distributed. The suitable process conditions have been established.

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  • 实验结果表明适当的微波辐射可以加速十二烷基缩水甘油合成反应而且操作简便

    The experimental results showed that the proper microwave irradiation could speed up the reaction of dodecyl glycidyl ether and give high yield with simple operation.

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  • 实验表明催化剂用量反应温度环氧树脂种类环氧性能有较大的影响

    The experiment showed the the mass of catalyst , the temperature and the type of epoxy resin affected properties of epoxy ether resin.

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  • 本文研究了脂肪醇聚氧乙烯聚合反应动力学

    The kinetics of polymerization of alcohol polyoxyethylene ether is studied in this paper.

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  • 对于硫醯亚胺基酮自由基反应,则是得到低产率简单产物不是预期烯醇化合物

    In another direction, the radical cyclization of thioimide with acylsilane produced simple cyclization product in low yield without expected enol silyl ether compound.

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  • 本文阐述了反应特点及其动力学反应计算方法并分析了影响反应器的主要因素

    The properties of methyltertiarybutyl ether reactor and the calculation methods of the kinetic reactor are introduced. The major factors which effect the reactor are analyzed.

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  • 文章介绍醚的合成工艺反应条件催化剂

    This paper introduces its synthetic technology, reaction condition and reaction catalyst.

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  • 研究了苯磺酸型树脂催化异戊甲醇化,考查了温度、醇烯比和空速对反应影响

    The etherification of isoamylenes and methanol to form tert all methyl ether (TAME) by benz-sulfonic acid cation exchange resin as catalyst, was studied.

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  • 研究探针化合物安息引发单体光聚合反应中的应用。

    The photopolymerization process of acrylate monomer initiated by benzoin ether has been studied by two kinds of fluorescence probe.

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  • 研究探针化合物安息引发单体光聚合反应中的应用。

    The photopolymerization process of acrylate monomer initiated by benzoin ether has been studied by two kinds of fluorescence probe.

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