Synthesis and nonlinear optical effects of α-methylstyrene copolymers bearing the pyridinium and quinolinium salt chromophore

Dong Hoon Choi, Jong Soo Ahn, Nakjoong Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We synthesized α-methylstyrene copolymers bearing the two different organic salt type chromophores and investigated their second-order nonlinear optical properties using the linear electro-optic (EO) coefficient measurement and second harmonic generation (SHG). In the synthesis of copolymers, N-vinylcarbazole or p-hydroxyphenylmaleimide were employed as a comonomer. In the synthesis of organic salt type chromophore, pyridinium and quinolinium were selected as cationic species and tetraphenylboron was selected as a counterion. In the case of p-hydroxyphenylmaleimide copolymer, we made an attempt to induce thermal crosslinking reaction utilizing diisocyanate. Crosslinking reaction via tetramethylene-m-xylidene diisocyanate was traced by virtue of infrared spectroscopy. The stability of second-order nonlinear optic property was also observed.

Original languageEnglish
Pages (from-to)125-133
Number of pages9
JournalPolymer (Korea)
Volume21
Issue number1
Publication statusPublished - 1996

Keywords

  • Crosslink
  • Electro-optics
  • Molecular ionic chromophore
  • Nonlinear optics
  • Second harmonic generation

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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