本文研究在氢氧化铯催化下,三甲硅基乙炔与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.
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.
采用甲硫醇与碘在碱性条件下定量反应生成双硫醚的反应原理,建立了甲硫醇钠的定量分析方法。
The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.
介绍了乙二醇单异丁醚的反应机理及原料的摩尔比、反应温度和反应时间等因素对合成反应的影响。
This paper dealt with reaction mechanisms and synthesis and the effects of raw materials mole ratio, reaction temperature and reaction time.
叔丁基羟基茴香醚(BHA)和二叔丁基对甲酚(BHT)的氧化特性和/或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.
根据酯在碱性条件下水解反应生成醚的原理,研究了以甲基硫酸钠废渣为原料制备二甲基硫醚的方法。
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.
普鲁兰氨基烃基醚的有机盐和无机盐可由普鲁兰氨基烃基醚与酸在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.
报道在二碘化钐作用下,硫代氨基甲酸酯发生还原反应,得到较好产率的二硫醚和酰胺化合物。
This paper reports reductive reaction of the thiocarbamic esters with samarium diiodide to give disulfidesand carboxamides in good results.
丙烯水合醚化反应中有副产物丙酮生成,而异丙醇单独进料时产物中没有发现丙酮的生成。
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.
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.
研究了无催化剂存在时,溶剂、硫化钠用量、反应时间和反应温度对从氯化苄和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.
本文研究了磺酸化的聚苯乙烯树脂在酯化、酯交换、缩醛或缩酮的合成、醚的合成及(口片)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.
甲氧基基团可以和纤维素上的羟基反应形成稳定的醚键。
Methylol groups react with the hydroxyl groups of the cellulose to form stable ether linkage.
阐述了二甲基硫醚合成反应所用催化剂的选择和反应器中催化剂装填高度的计算。
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.
结果表明热固性酚醛树脂的固化过程,首先是羟甲基发生缩合反应,缩合反应形成醚键是主要的。
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.
第二步,在金属钾催化条件下,使第一步产物缩水甘油醚发生开环加成反应生成双子表面活性剂的中间体低聚二醇。
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.
本文考察了各种工艺条件对不同催化裂化汽油轻馏分临氢醚化反应醚收率的影响和各馏分反应特点。
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.
本文首次报道一种新的高分子固载季铵树脂的合成及其在水解、成醚反应中的应用,此树脂是一种有效的三相催化剂。
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.
用丙烯酸蔗糖酯代替价格昂贵的烯丙基蔗糖醚作为交联剂,用过硫酸钾为引发剂,在水溶液中反应制取卡波姆。
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.
本文在实验室条件下分别以JSH-01、JSH-02树脂为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.
以高氯酸锌为催化剂,环氧乙烷和低碳醇反应生成窄分子量分布的乙二醇单低碳醇醚,确定了适宜的工艺条件。
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.
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醚的合成反应,而且产率高,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.
实验表明,催化剂用量、反应温度和环氧树脂的种类对环氧醚的性能有较大的影响。
The experiment showed the the mass of catalyst , the temperature and the type of epoxy resin affected properties of epoxy ether resin.
本文研究了脂肪醇聚氧乙烯醚的聚合反应动力学。
The kinetics of polymerization of alcohol polyoxyethylene ether is studied in this paper.
对于硫醯亚胺与矽基酮的自由基反应,则是得到低产率的简单环化产物,而不是预期的烯醇矽醚化合物。
In another direction, the radical cyclization of thioimide with acylsilane produced simple cyclization product in low yield without expected enol silyl ether compound.
本文阐述了醚化反应器的特点及其动力学反应器的计算方法,并分析了影响醚化反应器的主要因素。
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.
文章介绍醇醚的合成工艺、反应条件及催化剂。
This paper introduces its synthetic technology, reaction condition and reaction catalyst.
研究了苯磺酸型树脂催化的异戊烯和甲醇的醚化,考查了温度、醇烯比和空速对反应的影响。
The etherification of isoamylenes and methanol to form tert all methyl ether (TAME) by benz-sulfonic acid cation exchange resin as catalyst, was studied.
研究了两种探针化合物在安息香醚引发烯类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.
研究了两种探针化合物在安息香醚引发烯类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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