Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Effect of NaCl on the Mixed Micellar Properties of Sodium Dodecyl Sulfate(SDS) with Tetraethylene Glycol Monododecyl Ether(TGME)

Sodium Dodecyl Sulfate(SDS)와 Tetraethylene Glycol Monododecyl Ether(TGME)의 혼합미셀화에 미치는 NaCl의 효과

  • Lee, Byung-Hwan (Department of Liberal Arts, Korea Institute of Technology & Education)
  • 이병환 (한국기술교육대학교 교양학과)
  • Published : 19951200
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Abstract

The critical micelle concentrations(CMC$^*$) of the mixed surfactant systems of Sodium dodecyl sulfate(SDS) with Tetraethylene glycol monododecyl ether(TGME) in the aqueous solutions of NaCl at $25^{\circ}C$ were determined as a function of the overall mole fraction of $SDS(\alpha1)$ by the use of surface tension method. Various thermodynamic parameters for the micellization of SDS/TGME mixed surfactant systems were calculated and analyzed by means of the equations derived from the nonideal mixed micelle model, based on the pseudo-phase separation model.

순수 물 및 NaCl의 수용액에서 Sodium Dodecyl Sulfate(SDS)와 Tetraethylene glycol monodode-cyl ether(TGME)의 혼합계면활성제가 $25^{\circ}C$에서 나타내는 임계미셀농도값(CMC$^*$)들을 표면장력계로 측정하였으며, 이들 CMC$^*$값들이 음이온 계면활성제인 SDS의 몰분율 조성(${\alpha}_1$)과 첨과제인 NaCl의 농도에 따라 어떻게 변화하는지를 조사하였다. 유사상태분리모델을 기초로하는 비이상적 혼합비셀모델을 적용함으로써 측정된 CMC$^*$값들로부터 SDS/TGME 혼합계면활성제의 미셀화에 대한 여러가지 열역학적 함수값들을 계산하여 분석하였다.

Keywords

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