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In this paper, a quaternary ammonium salt of chitosan was synthesized and the factors affect on the solubility or degree of substitution of product, such as the concentration of alkali, the time of basification, the content of water in system, the time of dispersing and the method of adding epoxyproryltrimethylammonium chloride, were discussed in detail. The product was characterized by IR, DSC, TG and X-RAY diffraction. The effects of time, humidity and temperature on the gases permeability of the quaternary ammonium salt of chitosan film were researched.

本论文研究了壳聚糖季铵盐的合成反应，对碱化浓度、碱化时间、水的含量、分散时间和醚化剂的加入方式等因素对制备反应的影响进行了考察；应用红外光谱、DSC、TG以及X-射线衍射对产物进行了表征；探讨了时间、湿度和温度对壳聚糖季铵盐膜透气性的影响。

The affecting mechanism of grinding aid during mechanical milling of ceramic powders was synthesized basing the point of mechanochemistry.

从机械力化学角度探讨了陶瓷粉体机械粉碎过程中助磨剂的助磨作用机理。

We have reason to believe yet more can be synthesized and made into something new.

我们有理由相信，还会有更多的特质被人工合成出来，并转化成新的东西。

Dozens of analogues with modification at benzene ring were synthesized by using a metal-catalysis coupling.

另外，采用金属催化的偶联反应我们合成了苯环区取代的一系列类似物。

The development and application of supramolecular chemistry and NMR were reviewed.Based on that,several benzimidazole derivatives were synthesized from o-phenylenediamine.

本文在总结超分子化学及核磁共振的发展及应用的基础上，以邻苯二胺为原料，合成了几种苯并咪唑衍生物，作为分子识别中的客体小分子。

Based on the QSAR equation for MDR modulators, a new type of MDR modulators was designed with benzimidazole moiety as their parent nucleus, and four compounds of this type were synthesized and characterized.

在MDR逆转剂构效关系的理论指导下，选定苯并咪唑为母核，设计了一类新的MDR逆转剂候选化合物，合成了4个这种类型的新化合物。

On the basis of synthesis of the H+/K+-ATPase inhibitor omeprazole,seven benzimidazole derivatives were synthesized for the first time,and their structures were identified by 1H-NMR、MS and elementary analysis.

设计合成了7个未见文献报道的苯并咪唑类衍生物，经质谱、核磁共振氢谱和元素分析确定了结构。

We developed a simple and efficient method for the synthesis of benzimidazole derivatives in water. Imidazolium salt grafted iodobenzene diacetate containing double features of ionic liquid and iodobenzene diacetate was synthesized.

报道了一种简便高效的苯并咪唑类衍生物的水相合成新方法，合成了兼具离子液体和二醋酸碘苯双重特点的咪唑盐二醋酸碘苯。

K-ATPase is the last passageway of gastric acid secretion.On the basis of synthesis of the H+K-ATPase inhibitor pantoprazole,twelve benzimidazole derivatives were synthesized for the first time,and their structures were proved by IR,1H-NMR and elementary analysis.

摘 要 H+/K+-ATP酶是胃酸分泌的最后环节，在合成H+/K+-ATP酶抑制剂泮托拉唑的基础上，设计合成了12个未见文献报道的苯并咪唑类衍生物，经红外光谱、核磁共振氢谱和元素分析确定了结构。

Three new fluo-rine-containing nitro benzimidazole derivatives were synthesized in the presence of 4-dimethylaminepyridine andtheir structure and configuration were confirmed by elemental analysis, IR, and 1HNMR.

在碱性条件下由2-(4′-羟苯基)-5-取代苯并咪唑与氯乙酸作用得到5个新化合物取代苯并咪唑基苯氧乙酸。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。