一种新型共轭接枝聚合物的合成及性能

SYNTHESIS AND THE PROPERTY OF THE THIRD-ORDER NONLINEAR OPTICS OF A NOVEL p-π CONJUGATED GRAFT POLYMER

将微波辐射合成的苯代三聚氰胺(BGA)-均苯四酸二酐(PMDA)体系的PAA与TDI-对位取代苯胺衍生物反应,通过改变TDI-对位取代苯胺衍生物的对位取代基来合成具有不同电子效应的侧链端基的接枝聚合物。用红外及核磁共振的测试方法对聚合物的结构进行表征。接枝聚合物具有较强的三阶非线性光学响应和较强的荧光性能。考察了侧链端基电子效应对聚合物三阶光学非线性极化率系数和荧光行为的影响。

The polycondensation of the benzoguanamine (BGA) and pyromellitic Dianhydride (PMDA) was carried out under microwave irradiation, and the resulted polyamic acid was grafted with TDI-para position substitution aniline derivatives. Thus graft polymers with different electronic effect of the end group in side chain were obtained. The polymers were determined by Fourier transform Infrared absorption spectrum (FT-IR) and nuclear magnetic resonance spectrometry (NMR). After modified, the polymers have relatively large NLO coefficient and fluorescence property. The effects of electronic effect of the end group in side chain on the third-order NLO coefficient and the fluorescence behavior of the polymers solutions were investigated.