Article
  • Photochemical Reactions of Nonlinear Optical Polymers with a Dimethylaminonitrostilbene Chromophore
  • Choi SH, Song K
  • Dunethy laminonitrostilbene 발색단을 포함한 비선형광학 고분자의 광화학 반응 연구
  • 최시혁, 송기국
Abstract
The photochemical reaction mechanism of 4,4''-dimethylaminonitrostilbene which is a nonlinear optical chromophore was investigated using UV/Vis, FTIR, and NMR spectroscopic methods. By photo-selective reactions, p-nitrobenzaldehyde was formed through an oxidation reaction after the aliphatic C=C doble bond, radicals due to oxidation reactions reacted with other double bonds to form crosslinked chain structures.

비선혀광학 발색단인 4,4`-dimethylaminonitrostilbene의 광화학 반응 mechanism을 UV/Vix, FTIR, NMR spectroscopy 등의 분광학 방법을 이용하여 조사하였다. 선택적으로 발색단에서만 일어나는 광화학 반응에 의하여 stilbene의 aliphatic C=C 이중결합이 끊어지고 oxidation에 의하여 aldehyde group이 형성된 후 þ-nitrobenzaldehyde가 생성되었으며, 사슬에 남았는 끊어진 이중결합 부분에서는 oxidation에 의하여 생성된 라디칼들이 다른 사슬의 이중결합과 반응함으로써 가교 구조를 형성하였다.

Keywords: nonlinear optic; photochemical reaction; stilbene; spectroscopy

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1999; 23(1): 158-162

    Published online Jan 25, 1999