한국응용과학기술학회지 (Journal of the Korean Applied Science and Technology)

  • 제6권1호
  • /
  • Pages.67-73
  • /
  • 1989
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  • 1225-9098(pISSN)
  • /
  • 2288-1069(eISSN)
한국응용과학기술학회 (The Korean Society of Applied Science and Technology)
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카르복시베타인유도체(誘導體)의 미셀형성(形成)에 대한 열역학적(熱力學的) 연구(硏究)

The Thermodynamic Study on the Micellization of Carboxybetaine Derivatives

  • 김용인 (홍익대학교 공과대학 화공과) ;
  • 김유옥 (동양공업전문대학 공업화학과)
  • Kim, Yong-In (Dept. of Chemical Engineering, Hongik University) ;
  • Kim, Yu-Ok (Dept. of Industrial Chemistry, Tong Yang Technical Junior College)
  • 발행 : 1989.05.31
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초록

The adsorptions of 2-(dimethylalkylammonio)propanoates with straight chain alkyl group having from 12 to 16 carbon atoms on the liquid-air interface were decreased while lowering the surface tensions at critical micelle concentrations. In micellization, the standard free energy changes per methylene in alkyl group were found to make same contribution to the micelle formation of corresponding C-alkylcarboxybetaines, and the standard enthalpy and entropy changes were studied within the range of temperature from 30 to $50^{\circ}C$.

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