Effects of Surfactant Molecules’ Head- and Tail-groups on the Solubilization of p-Chlorobenzoic Acid 


Vol. 59,  No. 5, pp. 379-386, Oct.  2015
10.5012/jkcs.2015.59.5.379


PDF
  Abstract

양이온성, 비이온성, 양쪽성 계면활성제 및 그들의 혼합 계면활성제용액에서 p-클로로벤조산의 가용화상수(Ks)를 UVVis법으로 측정하였다. 계면활성제분자에서 탄소사슬의 길이가 서로 다른 소수성 꼬리-그룹과 친수성인 머리-그룹의 변화가 가용화에 미치는 효과를 조사하였으며, 또한 온도변화에 따른 Ks 값의 변화로부터 여러 가지 열역학적 함수 값들을 계산하고 분석하였다. 그 결과, 모든 계면활성제용액에서 p-클로로벤조산의 가용화에 대한 ΔGo 값은 모두 음의 값을 그리고 ΔHo와 ΔSo의 값은 모두 양의 값을 나타내었다. The solubilization of p-chlorobenzoic acid in aqueous solutions of pure cationic, nonionic, amphoteric, and their mixed surfactant systems have been measured by the UV-Vis spectrophotometric method. The effects of hydrophobic tail-group with different chain length and the hydrophilic head-group on the solubilization of p-chlorobenzoic acid have been studied and also thermodynamic parameters have been calculated from the dependence of Ks values on the temperature. The results show that the values of ΔGo for the solubilization by all surfactant systems are negative and the values of ΔHo and ΔSo are all positive.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

B. H. Lee and N. M. Lee, "Effects of Surfactant Molecules’ Head- and Tail-groups on the Solubilization of p-Chlorobenzoic Acid," Journal of the Korean Chemical Society, vol. 59, no. 5, pp. 379-386, 2015. DOI: 10.5012/jkcs.2015.59.5.379.

[ACM Style]

Byung Hwan Lee and Nam Min Lee. 2015. Effects of Surfactant Molecules’ Head- and Tail-groups on the Solubilization of p-Chlorobenzoic Acid. Journal of the Korean Chemical Society, 59, 5, (2015), 379-386. DOI: 10.5012/jkcs.2015.59.5.379.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)

ISSN(Print) 1017-2548
ISSN(Online) 2234-8530