项目名称: 含氮杂噻蒽环高折射率聚芳硫醚的分子设计与性能研究
项目编号: No.21304060
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 张刚
作者单位: 四川大学
项目金额: 25万元
中文摘要: 探寻分子结构变化对聚合物性能的影响进而找到控制材料宏观性能的根本方法一直是高分子领域的研究重点。本研究旨在现有高折射率聚合物的研究基础上,结合Lorentz-Lorenz 方程理论,通过分子设计合成新型单体2,6-二氟二氮杂噻蒽(N-DFT),并将其与4,4'-二氯二苯砜(DCDPS)和Na2S进行常压溶液共缩聚,制备出一系列不同含量砜基、硫醚及含氮杂环聚芳硫醚类共聚物,综合聚醚砜(PES)、聚苯硫醚(PPS)等已有聚合物的性能,深入研究这类共聚物中分子链重复单元(砜基、硫醚及二氮杂噻蒽环分子结构)变化对聚合物性能的改变,揭示其对聚合物性能的影响机制尤其是对材料光学性能的影响规律,为更好地按照材料性能要求对聚合物进行合理的分子结构设计提供可靠数据基础,同时也为更好地开发高折射率聚合物提供良好的理论支持。
中文关键词: 合成;聚芳硫醚;光学性能;;
英文摘要: It is one of the most primary tasks of polymer science that explore the law of molecular structure alteration effect on polymer performance, then study the fundamental way to control the macro-properties of polymers. In this application, we intent to synthesize a new monomer 2,6-difluoro-N-thianthrene (N-DFT). Then it was copolymerized with 4,4'-dichlorodiphenyl sulfone (DCDPS) and sodium sulfide to provide a series of copolymers containing different content of sulfone, thioether and 2,6-difluoro-N-thianthrene (N-DFT). We will further study and reveal the effects between the changes of repeating units of these copolymers (such as sulfone group, thioether and N-DFT) and polymer properties especially the optical performance based on the Lorentz-Lorenz equation theory,earlier study of high refractive index polymers, PES and PPS. The study will offer a reliable data base and a general theoretical support for polymers' further molecular design progress and high refractive index polymers' development.
英文关键词: synthesis;poly(arylene sulfide);optical performance;;