SYNTHESIS OF PI-CONJUGATED POLYMERS WITH RIGIDLY LINEAR STRUCTURES AND ELECTRONIC AND OPTICAL FUNCTIONALITIES BY ORGANOMETALLIC POLYCONDENSATION

有机金属缩聚合成具有刚性线性结构和电子光学功能的 PI 共轭聚合物

基本信息

批准号：
09450346
负责人：
YAMAMOTO Takakazu
金额：
$ 9.09万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

We have prepared rigidly linear π-conjugated polymers by organometallic polycondensation using nickel and palladium complexes. These π-conjugated polymers were electrically conductive after doping, and showed electrochemically active and luminescent properties. The synthesized polymers contain poly(arylene)s and poly(aryleneethynylene)s composed of pyrimidopyridine, pyridopyradine, 3,4-ethylenedioxythiophene, and pyrimidine. We have revealed their photoluminescent, electrically conducting, and electrochemical responses, as well as their intermolecular interaction and packing structure in the solid originated from the rigidly linear structure. Spectroscopy and powder X-ray diffraction methods gave fundamental information about the polymers.The π-conjugated polymers are usually photoluminescent and sometimes show electroluminescence. The polymers give a high viscosity due to their rigidly linear structure and exhibit a strong dichroism in stretched films. In the course of the polymerization, formation of intermediate organo-nickel and-palladium complexes is strongly suggested. We prepared model compounds for the intermediates and analyzed their molecular structure.The obtained π-conjugated polymers take p2gg or face-to-face aggregated packing structure in the solid due to the intermolecular interaction, and the packing mode influenced efficiency of the luminescence. The ease of oxidation and reduction of the polymers reflect the basic electronic properties of the repeating units.

我们利用镍和钯配合物通过有机金属缩聚制备了刚性线性π共轭聚合物，这些π共轭聚合物在掺杂后具有导电性，并表现出电化学活性和发光性能。 )由嘧啶并吡啶、吡啶并吡啶、3,4-乙撑二氧噻吩组成，和我们揭示了它们的光致发光、导电和电化学反应，以及它们在固体中源自刚性线性结构的分子间相互作用和堆积结构，提供了有关聚合物的基本信息。 π-共轭聚合物通常具有光致发光性，有时表现出电致发光性，由于其刚性的线性结构，该聚合物具有高粘度，并且在拉伸薄膜中表现出很强的二色性。在聚合过程中，强烈建议形成中间体有机镍钯配合物，并分析了其分子结构。所得π-共轭聚合物采用p2gg或面对面聚集堆积。由于分子间相互作用，固体中的结构和堆积模式影响发光效率，聚合物氧化和还原的难易程度反映了重复单元的基本电子特性。