Polarized-light-induced enhancement of the electro-optic properties in a photoreactive maleimide copolymer

Sang Kyu Lee, Min Ju Cho, Jung Il Jin, Dong Hoon Choi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A photocrosslinkable maleimide copolymer has been synthesized using a tricyanopyrrolidene (TCP)-based chromophore. The 2-(3-Cyano-4-(2-{4-[hexyl-(6- hydroxy-hexyl)-amino]-phenyl}-vinyl)-5-oxo-1-{4- [4- (3-oxo-3-phenyl-propenyl)- phenoxy]-butyl}-1,5-dihydro-pyrrol-2-ylidene)-malononitrile chromophore (DHATCP-CH) exhibits nonlinear optical activity and contains a chalcone moiety that is highly sensitive to UV light for crosslink formation. The maleimide monomer was also functionalized with chalcone moieties. The electro-optic signal can be varied under irradiation with linearly polarized light. The enhancement of the electro-optic effect in the copolymer is attributed to an angular selective photocrosslink formation upon illumination with p-polarized UV light. A possible mechanism that can explain this phenomenon is presented.

Original languageEnglish
Pages (from-to)1668-1672
Number of pages5
JournalJournal of the Korean Physical Society
Volume51
Issue number5
Publication statusPublished - 2007 Nov 1

Fingerprint

polarized light
chromophores
electro-optics
copolymers
malononitrile
augmentation
optical activity
monomers
illumination
methylidyne
irradiation

Keywords

  • Chalcone
  • Electro-optic effect
  • Photocrosslinkable chromophore
  • Polarized-light irradiation
  • Tricyanopyrrolidene chromophore

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Polarized-light-induced enhancement of the electro-optic properties in a photoreactive maleimide copolymer. / Lee, Sang Kyu; Cho, Min Ju; Jin, Jung Il; Choi, Dong Hoon.

In: Journal of the Korean Physical Society, Vol. 51, No. 5, 01.11.2007, p. 1668-1672.

Research output: Contribution to journalArticle

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N2 - A photocrosslinkable maleimide copolymer has been synthesized using a tricyanopyrrolidene (TCP)-based chromophore. The 2-(3-Cyano-4-(2-{4-[hexyl-(6- hydroxy-hexyl)-amino]-phenyl}-vinyl)-5-oxo-1-{4- [4- (3-oxo-3-phenyl-propenyl)- phenoxy]-butyl}-1,5-dihydro-pyrrol-2-ylidene)-malononitrile chromophore (DHATCP-CH) exhibits nonlinear optical activity and contains a chalcone moiety that is highly sensitive to UV light for crosslink formation. The maleimide monomer was also functionalized with chalcone moieties. The electro-optic signal can be varied under irradiation with linearly polarized light. The enhancement of the electro-optic effect in the copolymer is attributed to an angular selective photocrosslink formation upon illumination with p-polarized UV light. A possible mechanism that can explain this phenomenon is presented.

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