his paper deals with the introduction and review of different polymerization mechanisms of conjugated diene in the presence of Lewis base used as polar additive,proposed by different authors abroad as well as in China.
主要介绍和评述国内外文献中各学派对共轭二烯烃在阴离子聚合过程中借助路易氏碱的存在下，根据最终产物微观结构的结果，从而各自提出的聚合机理；最后着重综合了本文作者及其同事们多年来在这方面的研究成果，同时提出了一个较完整的机
This paper introduces the complexation and dissociation of different Lewis bases with active species in the area of anionic polymerization reported in literatures and elucidates their applications.
介绍和评述了文献中有关路易氏碱在阴离子聚合中对活性中心的络合和解缔作用。
Enamines were reduced to corresponding amines by trichlorosilane(HSiCl3) using Lewis base dimethylformamide(DMF) as a catalyst.
用路易斯碱二甲基甲酰胺(DMF)催化三氯氢硅(HS iC l3)还原烯胺合成对应的胺,最佳反应条件为:烯胺0。
Quantitative Study on the Lewis Base Property of MgO by Infrared Spectroscopy with Boric Acid Trimethyl Ester;
硼酸三甲酯为探针红外光谱定量研究氧化镁的路易斯碱性
采用硼酸三甲酯作为探针分子对Al2O3的路易斯碱性进行了红外光谱定量研究。
The catalytic systems of Lewis acid and base are useful ways in the non-enzymatic catalysis.
在非酶催化反应中 ,路易斯酸碱催化是比较常用的方法 ,它们被广泛地用于多种外消旋体的 (动态 )动力学拆分反应中 ,目前在该领域取得了很大的进展。
Asymmetric Reduction of N-acyl Enamines Catalyzed by Chiral Lewis Base
手性路易斯碱催化N-酰基烯胺不对称还原
Study on the Determination of Boric Acid Trimethvl Ester to Lewis Base Properties of Metal Oxides by Using Infrared Spectrum
用红外光谱法测定硼酸三甲酯对金属氧化物的路易斯碱性的研究
Study on the Preparation and Characterization of Lewis Bases Modified Zirconia Stationary Phases for High Performance Liquid Chromatography;
路易斯碱改性氧化锆色谱固定相的制备与性能研究
Design and Synthesis of Chiral Lewis Basic Organocatalysts for Asymmetric Reduction of Imines;
手性有机小分子路易斯碱催化剂的设计、合成及其在亚胺不对称还原中的应用
(Dynamic)Kinetic Resolution Reactions of Racemes Catalyzed by Lewis Acid and Base Catalysts
路易斯酸碱催化的外消旋体(动态)动力学拆分反应
DOBLES SANCHEZ, Luis
路易斯·多布尔斯·桑切斯
By Robert Louis Stevenson
罗伯特?路易斯?斯蒂文森
Isn't that true,Louis?
是不是这样，路易斯？
But Louis still couldn't see.
但路易斯仍然看不见。
Louis died when he was only 42.
路易斯42岁时就去世了。
Louis will never read or write.
路易斯不能读，不能写。
A man came and read books to Louis.
一个人给路易斯读，
Louis and his father went home.
路易斯和爸爸回到家。
It's easy to lose your way in Venice.
在威尼斯很容易迷路。
capital of Louisiana.
路易斯安那州的首府。
Louisiana State University
路易斯安那州立大学
It had been installed for Louis Howe.
这是为路易斯·豪修建的。
SANCHEZ, Homero Luis HERNANDEZ
奥梅罗·路易斯·埃尔南德斯·桑切斯