含非线性生色团取代聚丙烯酸酯的溶液性质  

Solution Property of Substitiuted Polyacrylates Containing Nonlinear Optical Chromophore

作　　者：徐洪耀[1] 方敏[2] 吴金翠[2] 光善仪[1] 

机构地区：[1]东华大学材料科学与工程学院和纤维材料改性国家重点实验室,上海200051 [2]安徽大学化学化工学院和安徽省绿色高分子材料重点实验室,安徽合肥230039

出　　处：《高分子材料科学与工程》2008年第3期110-112,117,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(90606011,50472038);教育部“国家新世纪优秀人才支持计划”项目资助(NCET-04-0588)

摘　　要：研究高分子的分子结构以及链结构行为和规律,对材料设计和应用有极为重要的意义。采用凝胶渗透色谱示差折光指数(RI)/黏度(DV)/激光光散射(RALLS)三检测联用技术,研究了非线性光学聚合物———侧链型聚丙烯酸酯的溶液性质,详细分析了侧链刚性共轭结构以及刚性共轭基团与主链之间连接链的方式与结构对高分子特性粘数、均方旋转半径<r2>0/M和Flory特征比C∞的影响。结果发现侧链共轭结构长度增加将增大分子的无扰尺寸和Flory特征比;主链与共轭基团间通过柔基团连接时,分子无扰尺寸和Flory特征比降低。The study of Polymer solution and its chain structure is very important for the molecular design and application of materials. The GPC/RI-DV-RALLS Multi-detection technique was used to measure solution property of nonlinear optical polymer, substituted polyacrylates and carefully investigated the influence of the rigid conjugated side-chain structure and the linked flexible chain structure between rigid conjugated group and major-chain on the characteristic viscosity, unperturbed dimensions 〈 r^2 〉0/M and Flory＇ s characteristic ratio C∞. The results show that unperturbed dimensions 〈 r^2 〉0/M and Flory＇ s characteristic ratio C∞ will increase with the length of side-chain conjugated structure and decrease when there is the linked flexible chain structure between rigid conjugated group andmajor-chain.

关 键 词：多检测凝胶渗透色谱 聚丙烯酸酯 溶液性质 特性黏数 Flory特征比C∞ 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]