Dendronized tricyanopyrroline-based chromophores in nonlinear optical active host polymer

Mai Ha Hoang, Myung Hee Kim, Min Ju Cho, Kyung Hwan Kim, Kyu Nam Kim, Jung Il Jin, Dong Hoon Choi

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

We synthesized new nonlinear optical (NLO) chromophores containing a 3,5-bis(3,5-bisbenzyloxy-benzyloxy)-benzoate dendron. Tricyanopyrroline (TCP)-based chromophores were designed and prepared by virtue of its strong electron withdrawing property. A soluble polyimide containing 6-({4-[2-(1-allyl-4-cyano-5-dicyanomethy-lene-2-oxo-2,5-dihydro-1H-pyrrol-3-yl) -vinyl]-phenyl}-butyl-amino)-hexanoyl group in the side chain was also prepared as an NLO active host polymer. A benzoate dendron was tethered at two different binding positions of the chromophore to yield two different guest molecules. Thin-film composites of these dendronized chromophores dissolved in the NLO active polyimide host were employed to fabricate the electro-optic (EO) samples. The EO properties of new NLO polyimides containing dendronized chromophores were compared with those of the sample with nondendronized plain chromophores. The effect of a bulky dendron on the EO properties was investigated using an in situ reflection technique.

Original languageEnglish
Pages (from-to)5064-5076
Number of pages13
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume46
Issue number15
DOIs
Publication statusPublished - 2008 Aug 1

Keywords

  • Dendronized chromophore
  • Host-guest-systems
  • NLO
  • Polyimides
  • Tricyanopyrroline

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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