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Solution Properties of Polyglycerol Alkyl Ether Nonionic Surfactant

폴리글리세롤을 친수성기로한 비이온성 계면활성제의 용액성

  • Yun, Y.K. (HAN HWA group, research and Engineering Center) ;
  • Nam, K.D. (Dept. of Ind. Chem., Chungbuk University) ;
  • Kang, T.J. (Dept. of Ind. Chem., Chungbuk University)
  • 윤영균 (한국화약 중앙연구소 정밀화학과 연구부) ;
  • 남기대 (충북대학교 공과대학 공업화학과) ;
  • 강태준 (충북대학교 공과대학 공업화학과)
  • Published : 1992.11.30

Abstract

The synthesis and solution properties of polyglycerol alkyl ether($R_{12}Gn$) are described. The phase behavior, surface tension, cloud point and HLB value of polyglycerol dodecyl ether in aqueous solution and in mixed solution of surfactant /water /oil have been investigated and compared with values of polyoxyethylene dodecyl ether. The surface tension showed that $R_{12}Gn$ have sufficiently low values of surface tension and cmc to serve as useful polyoxyethylene alkyl ether. The mesophases appearing in the $R_{12}Gn$ systems were more stable in a high temperature range than the mesophases of polyoxyethylene alkyl ether systems. The cloud point and HLB data indicated that addition of one glycerol group was equivalent to the addition of three oxyethylene group units, as far as the hydrophilic property was concerned. The phase diagrams of the polyglycerol alkyl ether /dodecane /water systems showed that the solubilizing and emulsifying powers of $R_{12}Gn$ were greater than those of polyoxyethylene alkyl ether. It is concluded that the polyglycerol chain can be even more useful as hydrophilic group of nonionic surfactants than the polyoxyethylene chain.

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