Novel approach to synthesizing poly（propylene）graft-poly（styrene） （PP-g-PS）

A novel synthetic route used for preparing PP-g-PS was designed. With this synthetic route, a series of graft copolymers with different contents of PS chain were synthesized successfully, and characterized by ^13C-NMR,DSC, GPC.     

氢化丁苯共聚物结构的核磁共振波谱表征Ⅱ.微观结构的定量计算

在氢化丁苯共聚物¹³C-NMR谱脂肪碳部分谱带归属的基础上,根据各谱带的主要来源,推导出六个二单元浓度的计算公式。计算出二单元、一单元的相对含量,各结构单元的数均序列长度、嵌段含量和其它结构参数。加氢前后的¹H-和¹³C-NMR谱的组成计算结果基本一致。初步探讨了作为粘度指数改进剂的氢化丁苯共聚物微观结构与性能的关系,为合成提供了依据。     

甲基丙烯酸甲酯与琼脂糖的接板反应及其共聚物的研究

本文研究硝酸铈铵作引发剂，甲基丙烯酸甲酯与琼脂糖的接枝共聚反应。考察了引发剂浓度、单体浓度、反应温度、反应时间及加料顺序地转化率接枝效率等的影响。红外光谱及热分析结果表明，所得产物为接枝共聚物。     

一种有机电致发光共聚物的制备和性能

采用Suzuki方法合成了9，9-二辛基芴与萘并硒二唑的两种无规共聚物并研究了其紫外光谱、光致发光和电致发光性能。两种聚合物的电致发光波长为650～666nm，均为发饱和红光的LED材料，其电致发光外量子效率最高达到了1．05％。随着共聚物中萘并硒二唑含量的增加，共聚物的光致发光和电致发光的发射波长均有少量红移。证明了根据共轭高聚物链内能量转移原理，在聚芴链中引入不同含量的窄带隙杂环单元可实现对聚芴发光颜色的调节。     

一种pH敏感相分离高分子在免疫分析中的应用

将乙肝表面抗体与N-羟基琥珀酰亚胺丙烯酸酯反应，生成丙烯酰基抗体．丙烯酰基抗体与甲基丙烯酸、丙烯酰胺共聚，生成pH敏感的三元共聚物．三元共聚物溶解．沉淀的临界pH值为3．8．三元共聚物上的抗体能与表面抗原、酶标抗体形成夹心复合物．利用三元共聚物可逆的溶解．沉淀特性，能实现在均相条件下，进行免疫反应，在异相条件下，进行免疫复合物的分离．     

Studies on the Adsorption of Asymmetrical Triblock Copolymers by Scheutjens-Fleer Theory and Monte Carlo Simulation

The adsorption of asymmetrical triblock copolymers from a non-selective solvent on solid surface has been studied by using Scheutjens-Fleer mean-field theory and Monte Carlo simulation method on lattice model. The main aim of this paper is to provide detailed computer simulation data, taking A8-kB20Ak as a key example, to study the influence of the structure of copolymer on adsorption behavior and make a comparison between MC and SF results. The simulated results show that the size distribution of various configurations and density-profile are dependent on molecular structure and adsorption energy. The molecular structure will lead to diversity of adsorption behavior. This discrepancy between different structures would be enlarged for the surface coverage and adsorption amount with increasing of the adsorption energy. The surface coverage and the adsorption amount as well as the bound fraction will become larger as symmetry of the molecular structure becomes gradually worse. The adsorption layer becomes thicker with increasing of symmetry of the molecule when adsorption energy is smaller but it becomes thinner when adsorption energy is higher. It is shown that SF theory can reproduce the adsorption behavior of asymmetrical triblock copolymers. However, systematic discrepancy between the theory and simulation still exists.The approximations inherited in the mean-filed theory such as random mixing and the allowance of direct back folding may be responsible for those deviations.     

过渡金属乙酰丙酮配合物引发淀粉与烯基单体接枝共聚

研究了Ｍｎ（Ⅲ）、Ｃｏ（Ⅲ）、Ｃｒ（Ⅲ）和Ｖ（Ⅳ）的乙酰丙酮配合物引发淀粉与ＭＭＡ、ＡＮ、ＡＭ和ＡＡ接枝共聚合反应的引发活性。实验表明，４种引发体系中，Ｍｎ（ａｃａｃ）３的引发活性最佳，它可以有效地引发淀粉与上述４种单体的接枝共聚合反应，并获得较高的ＰＧ；Ｃｏ（ａｃａｃ）３和Ｃｒ（ａｃａｃ）３仅对水溶性烯基单体ＡＭ、ＡＡ有良好的引发活性；Ｖｏ（ａｃａｃ）２对４种单体的引发活性均较低。４种单体中，水     

偶氮接枝的聚氨酯薄膜光谱响应特性的实验研究

利用旋涂法，通过接枝共聚的方法制备了具有偶氮侧基的聚氮酯高分子聚合物薄膜。并利用二倍频YAG激光（532nm）作为激发光，白光光源作为参考光，在室温下测试了该薄膜在激发光作用前后的吸收光谱，发现该薄膜在430nm-530nm内有较强的吸收。以及随着激光能量的增大和撤去激发光后，随着无光照时间的延长，360nm与500nm波长处吸收强度的变化趋势。     

红外光谱法分析淀粉接枝聚丙烯酸酯共聚物的各级结构

研究玉米淀粉接枝聚丙烯酸酯共聚物的各级结构，主要探讨去除均聚物和玉米淀粉侧链的方法。发现以环己烷为溶剂，用索氏萃取法除去均聚物比用苯萃取法时间短、效果好；用HCl酸解法除去淀粉侧链比用HClO4氧化法简单实用。用红外光谱进一步验证了各级结构的官能团，证实了所合成的共聚物是玉米淀粉接枝聚丙烯酸酯共聚物。     

丙交酯(L-LA)与PEG600多嵌段共聚物的合成与表征

以氧化锌为催化剂,使丙交酯开环与PEG600共聚,得到三嵌段的HO-PLLA-PEG-PLLA-OH预聚物,产物的数均相对分子量为2127。以TDI-80为扩链剂对其进行扩链,得到多嵌段共聚物。采用NMR、IR、GPC等对产物的结构、分子量分布进行了表征。