Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Surfaces Properties of ${\alpha}-Sulfonated$ Fatty Acid Polyethylene Glycol Esters

알파술폰 고급지방산 폴리에틸렌글리콜 에스테르류의 계면물성

  • Kim, J.H. (Dept. of Ind. and Eng. Chem., College of Eng., Chungbuk Nat. Univ.) ;
  • Yeon, Y.H. (Dept. of Ind. and Eng. Chem., College of Eng., Chungbuk Nat. Univ.) ;
  • Yun, Y.G. (Dept. of Ind. and Eng. Chem., College of Eng., Chungbuk Nat. Univ.) ;
  • Nam, K.D. (Dept. of Ind. and Eng. Chem., College of Eng., Chungbuk Nat. Univ.)
  • 김진현 (충북대학교 공과대학 공업화학과) ;
  • 연영흠 (충북대학교 공과대학 공업화학과) ;
  • 윤영균 (충북대학교 공과대학 공업화학과) ;
  • 남기대 (충북대학교 공과대학 공업화학과)
  • Published : 1998.06.30
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Abstract

All the surface activities including surface tension, foaming power, foam stability, emulsifying power, dispersion effect, and detergency were measured and critical micelle concentration(cmc) was evaluated in dilute aqueous solution. The cmc evaluated by the Ring method was $10^{-3}{\sim}10^{-4}mol/L$ in case of monoesters, and $10^{-3}{\sim}5.0{\times}10^{-5}mol/L$ in case of diesters, respectively. Surface tension of the aqueous solution was decreased to $45{\sim}50dyne/cm$, showing the tendency that the ability of lowering the surface tension was dependent on increasing of carbon atom number in alkyl chain. Foaming power of all the monoesters was better than that of diesters. while foam stability of diesters was to the contrary. Emulsifying power of soybean oil or benzene was specially expected to be good for emulsifiers in industrial application fields. HLB values of monoesters and diesters evaluated by Griffin's method were in the range of 8 to 12. Dispersion property of ferric oxide was stable in the range of $4.5{\times}10^{-5}{\sim}5.0{\times}^{-4}mol/L$ in case of monoesters, and $10^{-5}{\sim}10^{-4}mol/L$ in case of diesters.

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