Syntheses and second-order nonlinear optical properties of a series of new “H”-shape polymers
2012
Li, Zhong’an | Qiu, Guofu | Ye, Cheng | Qin, Jingui | Li, Zhen
To develop more “H”-shape nonlinear optical polymers, in this paper, four new polymers embedded with “H”-type chromophore moieties were designed and synthesized through a Suzuki coupling copolymerization reaction. The “H”-type chromophores were easily prepared by the utilization of “Click Chemistry” reactions, and their structures could be conveniently adjusted by changing the diazido groups. All the polymers exhibited good film-forming ability, thermal stability, and large optical nonlinearities. As a typical example, P4 demonstrated the highest d₃₃ value of 94.7 pm/V, and its onset temperature for decay was up to 103 °C, making it promising candidate for practical applications in photonic fields.
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