서지주요정보
측사슬 액정고분자에 의한 네마틱 액정의 배향 특성에 관한 연구 = Study on the alignment characteristics of nematic liquid crystals aligned on side chain liquid crystalline polymer film
서명 / 저자 측사슬 액정고분자에 의한 네마틱 액정의 배향 특성에 관한 연구 = Study on the alignment characteristics of nematic liquid crystals aligned on side chain liquid crystalline polymer film / 이병곤.
저자명 이병곤 ; Lee, Byong-Gon
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007307

소장위치/청구기호

학술문화관(문화관) 보존서고

MPH 97017

SMS전송

도서상태

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초록정보

In this thesis, the alignment characteristics of nematic liquid crystals were studied. The pretilt angle and the surface anchoring energy generated in the nematic phase of various liquid crystals aligned on rubbed side chain liquid crystalline polymer film were measured. The relationship between the bulk properties of nematic liquid crystals and their pretilt angles was investigated. Also the relationship between the surface anchoring energy and the bulk properties of nematic liquid crystals aligned on rubbed side chain liquid crystalline polymer(LCP100) film was investigated. It has been found that the dielectric properties of nematic liquid crystal is the best correlated parameter for the pretilt angle and the surface anchoring energy. And then, the temperature dependence of the pretilt angle and the surface anchoring energy was investigated. The thermal hysteresis of pretilt angle and optical phase retardation is seen near the glass transition temperature of side chain liquid crystalline polymer in heating and cooling process. This phenomenon may be due to the change of surface aligning characteristics of side chain liquid crystalline polymer film. Finally, the measurement of the dielectric constant of nematic liquid crystal and liquid crystalline polymer was performed in accordance with temperature variation. In this experiment it was found that the thermal variation of the dielectric constant of nematic liquid crystal is strongly correlated with pretilt angle and nematic order parameter.

서지기타정보

서지기타정보
청구기호 {MPH 97017
형태사항 xi, 153 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Byong-Gon Lee
지도교수의 한글표기 : 박해용
지도교수의 영문표기 : Hae-Yong Park
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 141-150
주제 액정
액정고분자
선경사각
표면고정에너지
분자배향
Liquid crystal
Liquid crystalline polymer
Pretilt angle
Surface anchoring energy
Molecular alignment
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