非对称结构苯并三唑类聚合物-ZnO纳米阵列复合电致变色材料的研究

项目名称： 非对称结构苯并三唑类聚合物-ZnO纳米阵列复合电致变色材料的研究

项目编号： No.51273179

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 张诚

作者单位： 浙江工业大学

项目金额： 80万元

中文摘要： 具有多色显示功能的电致变色聚合物是一种新型信息功能材料，本项目拟设计合成一系列以苯并三唑为电子受体、两端分别连接不同给体的非对称给体-受体-给体'（D-A-D'）结构单体，并以高度有序的ZnO纳米阵列为模板，利用电化学原位复合技术制备苯并三唑类聚合物-ZnO纳米阵列复合电致变色材料。非对称D-A-D'结构整合了共聚与对称型D-A-D结构的优点，可大范围调控电致变色材料的多色显示功能；纳米有序复合微结构的构筑，能改善聚合物与电极的接触界面和结合力，增加补偿离子的扩散通道，缩短其扩散距离，有望显著提高材料的稳定性、响应速度等性能。最终，设计并组装基于苯并三唑类电致变色聚合物-ZnO纳米阵列复合材料的多色显示原型器件，阐明非对称D-A-D'结构、聚合物聚集态、复合界面微结构与电致变色性能之间的关联，为多色快速响应型电致变色聚合物-ZnO纳米复合材料及其显示器件的制备提供理论基础与实验依据。

中文关键词： 电致变色聚合物；非对称D-A-D’结构；纳米复合；快速响应；掺杂/脱掺杂

英文摘要： Polymer Electrochromic (PEC) materials with multicolor display properties are promising as novel information functional materials. We synthesize a series of monomers with a asymmetric donor-accepter-donor' (D-A-D') structure using benzotriazole as an electron accepter and several ending groups as donors. Based on highly ordered ZnO nanorod arrays as templates, benzotriazole polymers-ZnO array hybrids are fabricated via an electrochemical in-situ composite technique. The asymmetric D-A-D' structure consists of many advantages of both the copolymerization and the symmetric structure, which can effectively tune the colors of PEC materials. The existence of the ordered nanostructure can not only enhance the adhesion of the polymer to the ZnO electrode, but also increase the diffusion channel and reduce the diffusion distance of counterions, which can significantly improve PEC materials' stability and response speed, etc. Finally, the multicolor display prototype devices based on the benzotriazole polymers-ZnO array composites are designed and assembled to investigate the relationship among the asymmetric D-A-D' structure, composite interface microstructure and electrochromic properties. Thedeep understanding the above relationship will pave the way to fabricate the multicolor and fast response PEC-ZnO nanocomposites

英文关键词： electrochromic polymer；asymmetric D-A-D’ structure；nanocomposite；fast switching；doping/dedoping