Synthesis and characterization of a cross-linkable nonlinear optical polymer functionalized with a thiophene- and tricyanovinyl-containing chromophore
作者： Jumin Hao , Mei-Juan Han , Kunpeng Guo , Jianfeng Zhai , Tao Zhang
DOI: 10.1016/J.REACTFUNCTPOLYM.2007.05.007
关键词:
摘要: Abstract This paper reports a novel nonlinear optical polymer BP-AVT-TCV functionalized with thiophene- and tricyanovinyl-substituted chromophore. was synthesized by the post-tricyanovinylation of an epoxy-based precursor BP-AVT, had high molar functionalization degree chromophore (70 mol.%). It enhanced glass transition temperature (Tg = 164 °C) compared BP-AVT (Tg = 114 °C), decomposition (Td,5% = 295 °C). further cross-linked to achieve three-dimensional (3D) network thermosetting polyurethane (PU). The poled PU films revealed electro-optic (EO) coefficient (γ33) value 21 pm/V at wavelength 1315 nm. structures polymers were confirmed FT-IR, UV–Vis, 1H NMR spectra.
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