Synthesis and characterization of a cross-linkable nonlinear optical polymer functionalized with a thiophene- and tricyanovinyl-containing chromophore

Jumin Hao, Mei Juan Han, Kunpeng Guo, Jianfeng Zhai, Tao Zhang, Xiaoguang Meng, Junfeng Liang, Ling Qiu, Yuquan Shen

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

This paper reports a novel nonlinear optical polymer BP-AVT-TCV functionalized with a thiophene- and tricyanovinyl-substituted chromophore. BP-AVT-TCV was synthesized by the post-tricyanovinylation of an epoxy-based precursor polymer BP-AVT, and had a high molar functionalization degree of chromophore (70 mol.%). It had an enhanced glass transition temperature (Tg = 164 °C) compared with BP-AVT (Tg = 114 °C), and a high decomposition temperature (Td,5% = 295 °C). BP-AVT-TCV was further cross-linked to achieve the three-dimensional (3D) network of thermosetting polyurethane (PU). The poled PU films revealed an electro-optic (EO) coefficient (γ33) value of 21 pm/V at a wavelength of 1315 nm. The structures of the polymers were confirmed by FT-IR, UV-Vis, and 1H NMR spectra.

Original languageEnglish
Pages (from-to)758-768
Number of pages11
JournalReactive and Functional Polymers
Volume67
Issue number8
DOIs
StatePublished - Aug 2007

Keywords

  • Epoxy
  • Nonlinear optical (NLO)
  • Polyurethane
  • Post-functionalization

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