Synthesis and characterization of two series of polyimides as nonlinear optical materials
作者： Zhao Li , Yuxia Zhao , Jiayun Zhou , Yuquan Shen
DOI: 10.1016/S0014-3057(00)00033-1
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摘要: Abstract Using the post-azo coupling reaction in organic solvents, we synthesized two series of nonlinear optical (NLO) polyamic acids with four different NLO chromophores. The properties these polymers were characterized and compared. We found that increasing electron withdrawing ability or replacing benzene ring π-conjugated system thiophene will result red shift maximum absorption band enhancement response.
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