论文部分内容阅读
制备了一类新型的各含对硝基苯偶氮苯胺发色团的聚氨酯和环氧树脂的互穿网络型二阶非线性光学聚合物。用程序升温及升压电晕极化法可制得有良好光学质量的极化膜。ＤＳＣ曲线显示该互穿网络聚合物有１个玻璃化转变温度。在一维刚性取向气体模型的基础上，通过可见吸收光谱研究了该极化膜的非线性光学性质。其二阶非线性光学极化系数可达１０－７ｅｓｕ量级，发色团有优异的取向稳定性，其序参数在１００℃仍可长期稳定。
A new class of interpenetrating network type second-order nonlinear optical polymers of polyurethanes and epoxy resins containing p-nitrophenylalanine chromophores was prepared. With the program temperature and boost corona polarization can be obtained with good optical quality of the polarizing film. The DSC curve shows that the interpenetrating network polymer has one glass transition temperature. Based on the one-dimensional rigid orientation gas model, the nonlinear optical properties of the polarized film were studied by visible absorption spectroscopy. The second-order nonlinear optical polarizability can reach the magnitude of 10-7esu, the chromophore has excellent orientation stability, and its order parameters can still be long-term stable at 100 ℃.