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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 39, Number 12
JKCSEZ 39(12)
December 20, 1995 

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 NaCl 의 효과
Byung-Hwan Lee

순수 물 및 NaCl의 수용액에서 Sodium dodecyl sulfate(SDS)와 Tetraethylene glycol monododecyl ether(TGME)의 혼합계면활성제가 25℃에서 나타내는 임계미셀농도값(CMC*)들을 표면장력계로 측정하였으며, 이들 CMC*값들이 음이온 계면활성제인 SDS의 몰분율 조성(α1)과 첨가제인 NaCl의 농도에 따라 어떻게 변화하는지를 조사하였다. 유사상태분리모델을 기초로하는 비이상적 혼합미셀모델을 적용함으로써 측정된 CMC*값들로부터 SDS/TGME 혼합계면활성제의 미셀화에 대한 여러가지 열역학적 함수값들을 계산하여 분석하였다.

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℃ were determined as a function of the overall mole fraction of SDS(α1) 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.

896 - 901
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