石墨烯/聚吡咯甲烯三阶非线性光学复合材料的制备及其构效关系

项目名称： 石墨烯/聚吡咯甲烯三阶非线性光学复合材料的制备及其构效关系

项目编号： No.61205182

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 信息四处

项目作者： 李宝铭

作者单位： 福州大学

项目金额： 25万元

中文摘要： 三阶非线性光学聚合物材料在光电器件领域应用前景广阔，但是，同时具备三阶非线性极化率大、热稳定性和可加工性好等优点的聚合物材料非常少，这是目前制约三阶非线性光学聚合物材料实际应用的最主要瓶颈之一。本项目提出用具有较大π电子离域性和较窄能带宽度的聚吡咯甲烯以及廉价的片层状氧化石墨作为研究对象，采用超声辐射法构建三阶非线性极化率大、溶解性、成膜性和热稳定性优良的石墨烯/聚吡咯甲烯复合材料的新思路。通过超声辐射作用、石墨烯的有机化改性以及聚吡咯甲烯与石墨烯的化学键合实现石墨烯均匀稳定地分散在复合材料中。表征产物的分子结构，研究影响反应的各种因素，考察复合材料的性能,探讨复合材料的结构- - 性能关系，揭示其非线性光学效应的产生机理，一方面为三阶非线性光学聚合物材料的制备探索新的思路，另一方面为三阶非线性光学聚合物材料的实际应用提供理论与实践基础。

中文关键词： 石墨烯；聚吡咯甲烯；三阶非线性光学性能；构效关系；

英文摘要： The third-order nonlinear optical polymer materials have broad application prospects in the field of optoelectronic devices, however, there is few polymer materials have high third order nonlinear susceptibility, well thermal stability and processability at the same time which is one of the main bottleneck restricting the practical application of the third-order nonlinear optical polymer materials. We study poly (pyrrolyl methine) with large π electron delocalization and narrow band gap, and cheap lamellar graphite oxide, and use ultrasonic radiation to prepare the graphene/poly(pyrrolyl methine) third-order nonlinear optical composite material with high third order nonlinear susceptibility, excellent dissolved, film forming ability and thermal stability. Graphene could disperses uniformly and stably in the composite material through the ultrasonic radiation, the organic modification of the graphene and the chemical bonding of graphene and poly (pyrrolyl methine). We will further characterize molecular structure, study different factors affecting the chemical reaction, investigate the properties of composite, explore the composite structure-performance relationship and reveal the nonlinear optical effect mechanism, on the one hand, to explore new ideas for the preparation of the third-order nonlinear optica

英文关键词： graphene；poly(pyrrolyl methine)；third-order nonlinear optical property；structure-performance relationship；