原位光聚合低共熔溶剂构筑生物可降解导电纳米纸及器件研究

电子器件绿色化是解决电子垃圾环境污染的根本性方案，纳米纸作为理想的绿色衬底，但可采用的活性导电材料存在重金属污染或降解困难、透明度有限、弯曲模量高和价格昂贵等问题。本项目拟将可聚合结构单元引入到低共熔溶剂（Deep eutectic solvent，DES）中，构建低成本、生物可降解、本征导电、高透明度和易于图案化的可聚合低共熔溶剂（Polymerizable deep eutectic solvent，PDES），揭示PDES形成机理。然后以纳米纸为衬底，采用卷对卷丝网印刷工艺，经原位光聚合后PDES形成固态大分子的Poly(PDES)，构建透明、柔性、生物可降解的导电纳米纸。研究光聚合动力学的变化规律，进一步阐明PDES构效关系。本项目将为绿色电子器件制造提供包括透明导电材料和印刷制造工艺的系统解决方案，源头上解决电子垃圾的环境污染问题，是一项具有重要学术价值和应用前景的基础性研究。

The greening of electronic devices is a fundamental solution to the environmental pollution caused by the electronic waste. Nanopaper is considered an ideal and green substrate for flexible electronic devices. However, the active conductive materials have problems such as heavy metal pollution or difficulty in degradation, limited transparency, high bending modulus and expensive cost. Herein, polymerizable structural units are introduce into deep eutectic solvers (DESs) in order to establish a low cost, biodegradable, intrinsic conductivity, high transparency and easy patterning polymerizable deep eutectic solvers (PDES), and the formation mechanism of PDES will be revealed. Then, using the roll-to-roll screen printing process, in-situ photopolymerization of PDES on the nanopaper substrate is performed, obtaining a solid macromolecule Poly(PDES). As a consequence, the transparent, flexible, biodegradable conductive nanopaper is constructed. The variation of photopolymerization dynamics is studied and the structure-activity relationship of PDES is further clarified. This project will provide a system solution including transparent conductive materials and manufacturing processes for the green electronic devices, and settle the environmental pollution of electronic waste from the start. Consequently, the project, as an original and basic research, is of great academic significance and application prospect.