Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A study on the characterization of stearic acid and PDA LB films and the optimum conditions for the stable films on the water

Stearic acid와 PDA LB막의 특성 분석과 막 형성 조건에 관한 연구

  • Jeon, Yong-Joo (Dep. of Electronic Eng. in Pohang Institute of Science and Technology) ;
  • Kwon, O-Dae (Dep. of Electronic Eng. in Pohang Institute of Science and Technology) ;
  • Jeong, Sang-Don (Korea Electronics and Telecommunications Research Institute) ;
  • Jeong, Cheol-Hyeong (Korea Electronics and Telecommunications Research Institute) ;
  • Kim, Jang-Joo (Korea Electronics and Telecommunications Research Institute)
  • 전용주 (포항 공과 대학 전자.전기공학과) ;
  • 권오대 (포항 공과 대학 전자.전기공학과) ;
  • 정상돈 (한국전자통신연구소) ;
  • 정철형 (한국전자통신연구소) ;
  • 김장주 (한국전자통신연구소)
  • Published : 1989.11.25
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Abstract

The characteristics of stearic acid and PDA (pentacosaDiyonicAcid) LB films were studied using the XRD spectra for regularity of layers and ellipsometer for the total thickness of multilayer films. From the experiments of varying the PH and temperature, it was found that the stability of monolayer on the water subphase was very sensitive to its PH and temperature. The optimum condition of PH for the stable stearic acid LB film was 6$\sim$6.5. The PDA LB films were stable at the lower temperature than room temperature: we obtained very uniform PDA LB films at 12$^{\circ}C$.

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