화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.11, No.2, 151-156, April, 2000
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고분자 반응을 이용한 Maleimide계 비선형 광학 고분자의 합성 및 전기광학 특성
Synthesis of Nonlinear Optical Maleimide Copolymer by Polymer Reaction and Its Electro-Optic Properties
박이순†, 김성진, 최수영, 정석현, 김기현1
  • 경북대학교 고분자공학과, 대구 702-701
  • 1동경공업대학 자원화학연구소, 4259, Nagatsuta, Midori-ku, Yokohama, 226
Lee Soon Park†, Sung Jin Kim, Soo Young Choi, Suk Hyun Jung, and Gi Heon Kim1
  • Department of Polymer Science, Kyungpook National University, Taegu, 702-701, Korea
  • 1Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259, Nagatsuta, Midori-ku, Yokohama, 226, Korea
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초록
이차 비선형 광학 현상 중 전기광학 효과가 우수한 새로운 기능성 고분자들의 합성과 그 물성에 대해 조사하였다. 고분자 반응으로 발색단인 2[4-(4-nitrophenylazo) -N-ethylphenylamino]ethanol (DR-1)을 도입할 기재 고분자로는 Poly (α-methylstryene -co-hydroxyphenyl maleimide) (HSHM)과 poly(α-methylstyrene-co-4-carboxyphenly maleimide) (MSCM)을 합성하였다. MSHM과 MSCM 기재 고분자에 Mitsunobu 반응을 이용하여 DR1 발색단을 도입한 결과 DR1 발색단의 도입율은 각각 94.3 mole %와 33.0 mole % 으로 나타났다. 합성된 비선
Novel polymers which exhibit non-linear optical (NLO) properties have been synthesized and their electro-optic properties were examined. Poly (α-methylstyrene-co-hydroxphenyl maleimide) (MSHM) and poly (α-methylstyrene-co-4-carboxyphenyl maleimide) (MSCM) substrate polymers were obtained readily by free radical polymerization. Introduction of DR1 chromophore to substrate polymer was conducted by using Mitsunobu reaction. The degree of substitution of DR1 into the MSHM, MSCM substrate polymer was found to be 9403 mol% and 33.0 mol%, respectively. The glass transition temperature (Tg) of NLO polymer was in the range of Tg=185-217℃. The electro-optic coefficient(r33) of NLO polymer was determined with an experimental setup capable of the real-time measurement while varying the poling field and temperature. The NLO polymer, MSHM-DR exhibited higher r33 values than MSCM-DR due to the increased substitution of the DR1 chromophores. MSHM-DR had a maximum r33 value of 26pm/V at 135MV/m poling field with a 632.8 nm light source.
Keywords:nonlinear optical polymer;maleimide copolymer;nlo properties;nlo polymer system
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