多组分聚合反应制备新型含4-(4-三氟甲基苯基)-2,6-二苯基吡啶结构功能聚合物及其性能研究

Ideal polymerization reactions are expected to generate polymeric products with desired structures in high yields from readily accessible reactants through fast and facile procedures. However, conventional polymerization methodologies possess disadvantages including pre-activation, harsh reaction conditions, tedious protection–deprotection procedures, and toxic byproducts. Therefore, development of novel and efficient polymerization method to functional polymers with well-defined structures and unique properties has important academic significance and potential industrial application value. .Multi-component reactions (MCRs) or multi-component tandem reactions (MCTRs) with advantages such as simple operation and high atom economy, have be recognized as very powerful techniques for rapid synthesis of structurally diverse organic compounds. Based on our own previous study results, and inspired the recent developments in MCRs and MCTRs, a series of novel functional polymers containing fluorinated pyridyl moieties sucha as poly(enaminone)s, poly(propargylamide)s and poly(tetraarylethene)s will be developed through one-pot, multi-component or multi-component tandem polymerization reaction based on two new bifunctional monomers such as terminal diynes and diiodides bearing 4-(4-trifluoromethylphenyl)-2,6-diphenylpyridyl unit in this study, respectively. The reaction conditions for the preparation of monomers and MCRs or MCTRs polymerization reaction for the corresponding polymers will be investigated. The influences of pyridyl, trifluoromethyland propargyl moieties on the properties such as the solubility, processability, thermal stability, and mechanical property as well as optical and dielectric behaviors of these new functional polymers will also be study. We hope to develop several novel functional polymers with a combination of excellent properties, and provide theoretical and experimental foundation for their potential applications as functional materials and high performance polymer materials.

理想的聚合反应为原料易得，能快速、高效获得所需结构的聚合物产品。然而，传统聚合方法和工艺，仍存在单体不易获得，聚合条件苛刻，产生有害副产物等缺点。发展新颖、高效的聚合方法以制备结构和性能独特的大分子具有重要的学术意义和潜在的工业应用价值。多组分/串联反应具有操作简单，原子经济性好等优点，是一种高效、快速合成结构多样性化合物的技术。本项目基于前期工作和近年来多组分反应研究，拟设计合成含4-(4-三氟甲基苯基)-2,6-二苯基吡啶结构的端二炔和二碘代物两种“双官能团”新单体，探索其参与“多组分/串联”聚合反应制备含氟化吡啶结构单元的聚烯胺酮、聚炔丙基酰胺、聚四芳基乙烯等新型功能聚合物。拟优化单体制备和“多组分/串联”聚合反应条件，研究吡啶、三氟甲基和炔丙基等基团对聚合物性能的影响，期望获得易制备和加工，热、电、光、力学等综合性能优异的功能聚合物新品种，为其潜在应用提供一定的理论基础和实验依据。

理想的聚合反应为原料易得，能快速、高效获得所需结构的聚合物产品。然而，传统聚合方法和工艺，仍存在单体不易获得，聚合条件苛刻，产生有害副产物等缺点。发展新颖、高效的聚合方法以制备结构和性能独特的大分子具有重要的学术意义和潜在的工业应用价值。多组分/串联有机小分子反应具有操作简单，原子经济性好等优点，是一种高效、快速合成结构多样性有机化合物的技术。“多组分/串联”聚合反应继承了有机小分子多组分反应的优点，有利于高效、快速合成结构可控和多样化的先进聚合物。. 本项目基于前期工作和近年来有机小分子多组分/串联反应研究，设计并合成了含 4-(4-三氟甲基苯基)-2,6-二苯基吡啶结构的端二炔和端二碘/溴等单体，探索了其参与“多组分/串联”聚合反应制备含4-(4-三氟甲基苯基)-2,6-二苯基吡啶结构单元的聚芳酰胺、超支化聚芳酰胺、聚三苯基丙烯腈、超支化聚三苯基丙烯腈和聚苯乙炔，聚三唑甲基芳基醚以及含吡啶和咔唑结构的聚三苯基丙烯腈等一系列新型功能聚合物的聚合方法，并对其结构和性能进行了表征。研究了三氟甲基和吡啶等功能基团对相应聚合物的溶解性、加工性、耐热性、力学和光电等性能的影响，获得了一些易制备和加工，热、电、光、力学等综合性能优异的高性能聚合物和功能聚合物新品种，为其潜在应用提供了一定的实验依据和理论基础。