Proceedings of the Korean Institute of Navigation and Port Research Conference (한국항해항만학회:학술대회논문집)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Synthesis of photopolymer containing chalconyl and cholesteryl moieties and their LCD applications

Chalconyl 과 Cholesteryl 기를 함유한 광폴리머의 합성 및 LCD 응용

  • 황정연 (연세대학교 전기전자 공학과) ;
  • 서대식 (연세대학교 전기전자 공학과) ;
  • 김재형 (인제대학교 물리학과) ;
  • 손정호 (한양대학교 공업화학과) ;
  • 서동학 (한양대학교 공업화학과)
  • Published : 2000.11.01
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Abstract

Synthesis of a new copoly (M4Ch-ChMA), copoly ((4-methacryloyloxy) chalcone-cholestery methacrylate), with chalconyl and cholesterol moiety characteristics for photoalignment materials was investigated. Good thermal stabilities of the synthesized copolymers are confirmed by thermogravimetric analysis (TGA) measurement. The pretilt angles of the nematic liquid crystal (NLC) are reduced as UV exposure time is increased on the copolymer surfaces. A pretilt angle of 81$^{\circ}$in NLC was observed with UV exposure of 3 min on the copolymer-3 surface. The NLCs pretilt angle is attributable to increased chalcone with increasing the UV exposure time.

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