高分子

A reversible Markov process as a chemical polymerization model where a gelation transition exists is presented. The stationary distribution, partition function and expression of covariance of this model are obtained.

以存在凝胶化现象的高分子反应模型为背景，定义了高分子反应所对应的可逆Markov过程，给出了过程的稳定分布及配分函数，推导出了分子间协方差的表达式。

In this paper, the preparation and Temperature Coefficient of Resistance characteristic of nano-VO2 powder/ Poly(3,4-ethylenedioxythiophene) composite is described.

功能复合材料是近年来电子材料研究的热门方向之一，由过渡金属氧化物相与高分子绝缘相组成的复合材料的研究成果屡见报导，而本文所研究的纳米VO2与高分子导电相复合的材料具有负电阻温度系数特性。

In this paper, urushiol-Titanium chelate polymer was synthesized through tetrabutyl titanate reacting with the product which is from polymerization between urushiol and formaldehyde, which endows urushiol and Titanium atom with macromolecular performance and functional performance, respectively.

根据其结构特点，本研究利用漆酚先后与甲醛和钛酸丁酯聚合形成高聚物，使得漆酚高分子功能化、钛原子高分子化。

A Novel Method for Intrinsic Viscosity Determination of Polymer SolutionThere are many methods for molecular weight determination of polymers, among which viscometry is used most, it has been broad applied both in production and scientific research.

高分子溶液特性粘度测定的新方法高分子化合物分子量的测定方法有多种，最常用的是粘度法，该法在生产和科研中已得到广泛的应用。

In this thesis, monomer with unsaturated double bond was firstly synthesized byreacting acryloyl chloride with bifunctional monomer. Such synthesized monomer ormonomer with initial unsaturated double bond was used to prepare linear polymericmaterials by free radical polymerization. A series of new degradable space polymerswith acylamino bond were subsequently synthesized using diisocyanate as thecross-linker.

本文首先通过丙烯酰氯和双官能团单体反应引入不饱和双键，或者直接使用具有不饱和双键的单体，通过自由基聚合得到含有活泼羟基或氨基的线型高分子聚合物，再用二异氰酸酯作为交联剂交联，从而合成了一系列基于酰胺键的新型可降解高分子体型聚合物。

Syntheses of PPVs derivatives containing oxadizole by Heck reaction Chromophore of oxadizole was introduced into the chain of PPVs derivatives with alkoxyl as side-chain by Heck reaction.

二。通过Heck反应在PPV主链结构中引入噁二唑基团通过Heck反应将噁二唑引入了不同烷氧取代的PPV高分子主链，所得高分子在THF、DMF等常见溶剂中有较大的溶解度。

The contents are mainly divided into three parts: The first part describes mechanism and metabolism rule of natural products and its classification ; The second part is about the growth and development of plants and their mutual relationship, natural biological active substances which are produced in the course of defending plant diseases and insect damages. The third part is not only the function and principle of medicine, anticancer and antioxygen activity of different kinds of natural products such as resin ,essential oil, high molecule, grease and so on but also their application. The fourth is security problem of Plant Natural Products. Through the lessons, we can correctly understand and use the relationship between plants and environment.

其课程分为13章，内容主要分为4大部分，一是阐述植物天然产物的发生机理和代谢规律，介绍相关主要植物种类，并对天然产物进行化学分类；二是讲述植物天然产物和自身生长发育之间的关系、天然产物如何影响植物之间的相互关系、以及植物如何利用天然生物活性物质抵御病虫害的威胁；三是详细描述了各种天然产物，如植物自身生长发育过程中所产生的活性物质、植物与其它生物之间的相互关系中所产生的生物活性物质、植物毒性物质、植物药理活性物质、植物抗生物质、植物树脂、植物精油、植物高分子、植物油脂、植物抗氧化活性成分等，并阐述它们的药理活性、抗癌性、抗氧化性等对人类健康起作用的的功能和原理；四是提出了植物天然产物的安全性问题，并介绍相关案例和介绍相关法规；在此基础上还专门讲述了树脂、精油、高分子、以及油脂类等天然产物的应用。

For the investigation of LC cells, this research focus on the surface analyses by suing SEM, both of the morphologies caused by various photo-polymerization conditions (various intensities of UV light and the presence of electric fields) and the effects of morphology on the electro-optical properties will be surveyed. The beadlike morphology was obtained from photo-crosslinkable monomer B-ThBiPhC6Ac 2,5-Bis-[4-(6-acryloyloxy-hexyloxy –phenyl ]-thiophene.

照光聚合单体 B-ThBiPhC6Ac 2，5-Bis-[4-(6-acryloyloxy -hexyloxy-phenyl]-thiophene 在照光聚合后其高分子形成颗粒状的形态，而化学结构与前者相似的单体B-TrPhC6Ac 4，4''-Bis-(6-acryloyloxy-hexyloxy-m-terphenyl，仅后者的中心化学结构改为苯环，由其 SEM 图可以看出其高分子的形态改变为颗粒状和纤维状。

Methods DA,Carbopol,dextrin,magnesium stearate,eudragˉit,titanium dioxide,yellowish pigment and diocytl phthalatewere mixed by certain technique.Then a kind of new bistratal durg-film was formed which contained both soluble and insoluble high polymer materal layer.Ingrediˉents of the film were measured and mucous membrane tests were done.

将醋酸地塞米松、卡波普、糊精、硬脂酸镁、丙烯酸树脂、二氧化钛、黄色素、邻苯二甲酸二辛酯等经一定工艺，形成由可溶性粘附性高分子材料及不溶性高分子材料组成的新颖双层粘贴片，并作含量测定及缓释透粘膜实验。

Both cholesteric liquid crystal polymer cholesteric liquid crystal optical properties and the unique characteristics of the polymer which has a wide range of applications.

胆甾液晶高分子兼具胆甾相液晶的独特光学性质及高分子的特点从而具有广泛的应用前景。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。