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Park, Lee Soon
School of Materials Science and Engineering
Research Interests
  • Flexible OLED new materials, process and fabrication
  • Touch Screen Panel(TSP) new materials and process new materials and process
  • Nano-materials synthesis and application (Ag nano-wire and metal mesh electrode)

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고분자 반응을 이용한 Maleimide계 비선형 광학 고분자의 합성 및 전기광학 특성

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Title
고분자 반응을 이용한 Maleimide계 비선형 광학 고분자의 합성 및 전기광학 특성
Author
Park, Lee SoonKim, Sung-JinChoi, Soo YoungJung, Seok HyunKim, Gi Heon
Issue Date
2000-04
Publisher
Korean Society of Industrial Engineering Chemistry
Citation
JOURNAL OF THE KOREAN INDUSTRIAL AND ENGINEERING CHEMISTRY, v.11, no.2, pp.151 - 156
Abstract
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.
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ISSN
1225-0112
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