Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Stimulus Reaction of PBDG

Poly-$\gamma$-Benzyl D-Glutamine의 자격반응에 관한 연구

  • Chang, Hun (Dept. of Electrical & Electronic Eng. Dongshin Univ. grad.) ;
  • Lee, Kyung-Sup (Dept. of Electrical & Electronic Eng. Dongshin Univ.)
  • 장헌 (동신대학교 대학원 전기전자공학과) ;
  • 이경섭 (동신대학교 공과대학 전기전자공학과)
  • Published : 2001.07.18
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Abstract

The displacement current measuring system used for detecting the dynamic behavior of monolayers at the air-water interface is described. It basically consists of a film balance, a pair of electrodes connected to each other through a sensitive ammeter. Here, one electrode is suspended in air and the other electrode is placed in the water. With Maxwell-displacement-current-measuring method, the phase transitons of Poly-$\gamma$-benzyl p-glutamate (PBDG) on a water surface were detected. Measured surface pressure, displacement current and dipole moment of monolayers of PBDG on the water surface. Also, we measured that compression velocity(30, 40, 50[mm/min]) when the sample spread volume was about 400[ul]. From the result, it is known that current is generated in the range of high surface pressures as compression velocity become faster.

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