Studies on the Synthesis of Nonionic Surfactants (Ⅳ). Synthesis of myo-inositol Esters and their Surface Activities

비이온성 계면활성제의 합성에 관한 연구 (제4보). 미오-이노시톨 에스테르의 합성과 계면활성

  • Joohwan Sohn (Department of Chemical Emgineering, Inha University) ;
  • Kidae Nam (Department of Chemical Engineering, Choongbuk University)
  • 손주환 (인하대학교 공과대학 화학공학과) ;
  • 남기대 (충북대학교 공과대학 화학공학과)
  • Published : 1982.02.28

Abstract

Transesterification reactions were carried out with myo-inositol and five fatty acid methyl esters such as methyl laurate, methyl myristate, methyl palmitate, methyl stearate and methyl oleate in the dimethylsulfoxide solvent. Their products were separated by both thin layer chromatography and column chromatography, and myo-inositol monoesters were quantitatively separated by counter current distribution. We measured their surface tension, foaming power and emulsifying power, determined critical micelle concentrations by the color method, and evaluated their hydrophilic-lipophilic balance. The results show that myo-inositol monoesters exhibit surface activites.

미오-이노시톨과 라우르산, 미리스트산, 팔미트산, 스테아르산 및 올레산등 5종의 지방산 메틸에스테르를 디메틸술폭시드 용매내에서 에스테르교환반응을 행하였다. 에스테르교환반응생성물은 얇은막 크로마토그래피, 관 크로마토그래피에 의하여 각각의 에스테르를 분리할 수 있고 미오-이노시톨 모노에스테르는 향류분배 방법에 의하여 잘 분리할 수 있다. 모노에스테르의 수용액에 대한 표면장력, 기포력, 유화력등을 측정하고 색소법에 의한 임계미셀농도를 추정하고 HLB값을 산정하였다. 이 결과로 미오-이노시톨모노에스테르는 계면활성을 나타낸다는 사실을 알았다.

Keywords

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