Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Dielectric Relaxation Time of Long Chain Fatty Acid Langmuir films

장쇄지방산 L막의 완화 시간

  • 전동규 (동신대학교 대학원 전기전자공학과) ;
  • 장헌 (동신대학교 대학원 전기전자공학과) ;
  • 오재한 (성화대학 전기과) ;
  • 강용철 (광주보건대학 의공학과) ;
  • 최영일 (조선이공대학 전자정보과) ;
  • 이경섭 (동신대학교 공과대학 전기전자공학부)
  • Published : 2000.11.01
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Abstract

The displacement current measurement has been employed to study the dielectric properties of Langmuir films. A method for determining the dielectric relaxation time $\tau$ of floating monolayers on water surface is presented. The displacement current flowing across monolayers is analyzed using a rod-like molecular model. It's revealed that the dielectric relaxation time $\tau$ of monolayers in the isotropic polar orientational phase is determined using a liner relationship between the monolayers compression speed $\alpha$ and the molecular maximum area $A_{m}$. The compression speed $\alpha$ was about 30, 40, 50mm/minmm/min

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