烯二炔化合物的离子型Bergman环化聚合反应制备共轭聚合物的研究

项目名称： 烯二炔化合物的离子型Bergman环化聚合反应制备共轭聚合物的研究

项目编号： No.21474027

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 胡爱国

作者单位： 华东理工大学

项目金额： 90万元

中文摘要： 共轭聚合物在荧光材料、光电池材料、导电材料等方面拥有重要的用途。共轭聚合物通常由交叉偶联反应制备，其中，金属催化剂的残留会影响到共轭聚合物的光电特性。为此，开发一种新型共轭聚合物合成的方法具有重要的理论和应用价值。本项研究采用合理的分子设计，合成出具有多种结构特点的烯二炔化合物，探索这些化合物在离子型引发体系中的环芳香化（Bergman环化）聚合物反应。通过调节溶剂、引发剂以及反应温度等反应条件并结合烯二炔化合物上取代基的立体位阻效应和电子效应，获取结构规整的共轭聚合物。通过对齐聚物的结构分析，并结合反应动力学研究以及计算机模拟技术，阐释烯二炔化合物离子型Bergman环化聚合反应的机理。本项研究将一类有机合成反应引入到高分子合成化学中，结合高分子科学中的可控聚合理念和方法，为共轭聚合物的制备开辟一条新的途径，并可望由此实现具有特殊拓扑结构的共轭聚合物的规模化合成，为这类聚合物在光电材料领

中文关键词： 高分子化学；共轭聚合物；烯二炔化合物；环芳香化反应；离子聚合反应

英文摘要： Conjugated polymers show wide applications in fluorescent materials, photovoltaic materials, conducting materials and other application fields. Conjugated polymers are generally prepared through transition metal catalyzed cross coupling reactions, in which the residual metal catalysts may significantly affect the optoelectronic property of the final conjugated polymers. Therefore, developing a new method for the synthesis of conjugated polymers is highly important. In this project, by using rational molecular design, a series of enediyne compounds with different structural features will be synthesized and their Bergman cyclization polymerization will be explored under ionic polymerization conditions. By screening solvents, initiators, and reaction temperatures for a variety of enediyne compounds with substituents of different steric and electronic effects, structural regulated conjugated polymers are expected to be obtained. With detailed structural analysis for oligomers, kinetic study of the polymerization and computer simulation, the mechanism of these ionic Bergman cyclization polymerization will be interpreted. In this project, one reaction that has already showed its talent in synthetic organic chemistry will be introduced in synthetic polymer chemistry, targeting the challenge that has presented in the synthesis of conjugated polymers for years. A new synthetic method for conjugated polymers are expected to be develop and applied in the facial production of conjugated polymers with special structural topography, which will pave a road for the wide applications of these polymers in optoelectronic fields.

英文关键词： Polymer Chemistry;Conjugated Polymers;Enediyne Compounds;Cycloaromatization;Ionic Polymerization