用密度泛函B3LYP方法研究了过渡金属钐类卡宾与乙烯的环丙烷化反应的机理。
The cyclopropanation reaction of ethylene with samarium (II) carbenoid was studied by means of the B3LYP hybrid density functional method.
采用微反-色谱联合装置对环氧丙烷开环异构化反应中催化剂的初活性进行了评选。
The initial activity of catalyst in isomerization reaction of propylene oxide have been evaluated with microreactorchromatograph.
本课题以蜜糖和十二烷基二甲基叔胺为原料，选择环氧氯丙烷作为季铵化反应的烷化剂。
This new synthesis method of humectants used honey and di-methyl-dodecyl amine as material to produce a quaternary surfactant.
纤维素纤维用聚环氧氯丙烷胺化物改性，并用直接染料、反应性染料中性、无盐染色。
Cellulosic fibres were treated with cationic modifying agents of PECH-amine and dyed with direct and reactive dyes without salts under neutral conditions.
纤维素纤维用聚环氧氯丙烷胺化物改性，并用直接染料、反应性染料中性、无盐染色。
Cellulosic fibres were treated with cationic modifying agents of PECH-amine and dyed with direct and reactive dyes without salts under neutral conditions.
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