Phase Behavior and Detergency of Methoxy Polyoxyethylene Dodecanoate

Methoxy Polyoxyethylene Dodecanoate의 상거동과 세정성

  • Kang, Y.S. (LG Chem., Household & Personal Care Products R&D Institute) ;
  • Yun, Y.G. (Dept. of Ind. Chemistry Chungbuk Nat'l Univ.) ;
  • Lee, J.H. (Dept. of Ind. Chemistry Chungbuk Nat'l Univ.) ;
  • Nam, K.D. (Dept. of Ind. Chemistry Chungbuk Nat'l Univ.)
  • 강윤석 ((주)LG화학 생활과학연구소) ;
  • 윤영균 (충북대학교 공과대학 공업화학과) ;
  • 이진희 (충북대학교 공과대학 공업화학과) ;
  • 남기대 (충북대학교 공과대학 공업화학과)
  • Received : 1998.01.24
  • Accepted : 1998.03.16
  • Published : 1998.06.10


Methoxy polyoxyethylene dodecanoates are a kind of nonionic surfactants obtainable from reaction of fatty acid methyl ester with ethylene oxide utilizing a solid catalyst. Methoxy polyoxyethylene dodecanoates have economical advantage compared with polyoxyethylene dodecyl ethers using fatty alcohol. In this work, the solubilizing capacity concerned with phase behavior of ternary systems composed of nonionic surfactant/water/oil, interfacial tension and detergency at the phase inversion temperature(PIT) were investigated and compared with those of polyoxyethylene dodecyl ethers in order to confirm the applicability of methoxy polyoxyethylene dodecanoates in the detergents. Methoxy polyoxyethylene dodecanoates showed the solubilizing capacity of 10~18% for hexadecane which were about 6% higher than polyoxyethylene dodecyl ethers. At the PIT condition, methoxy polyoxyethylene dodecanoates' interfacial tension were 0.0124~0.0176 dyne/cm while polyoxyethylene dodecyl ethers have the value of 0.013~0.0163 dyne/cm and methoxy polyoxyethylene dodecanoates showed higher detergency of 82.1~83.2% than polyoxyethylene dodecyl ethers of 76.5~77.3%. The good detergency performance of methoxy polyoxyethylene dodecanoates would be due to the higher oil solubilizing power and lower interfacial tension than polyoxyethylene dodecyl ethers at the PIT condition.



  1. 유기공업화학 v.141 남기대;정노희;권석기
  2. Ind. Eng. Chem v.46 no.9 E. F. Hill;G. R. Wilson;E. C. Steinle
  3. Ber. Deutsch. Chem. Gesell v.32 F. Krafft
  4. J. Colloid Interface Sci. v.117 K. H. Raney;W. J. Benton;C. A. Miller
  5. J. Colloid Interface Sci. v.110 W. J. Benton;K. H. Raney;C. A. Miller
  6. J. Phys. Chem v.88 K. Shinoda;H. Kunieda;T. Arai;H. Saijo
  7. Pro. Colloid & Polymer Sci. v.82 J. P. Conroy;C. Hall;C. A. Leng;K. Rendall;G. J. T. Tiddy;J. Walsh;G. Lingblom
  8. J. Am. Oil Chem. Soc v.74 M. F. Cox;U. Weerasooriya
  9. Pro. Colloid & Polym. Sci. v.82 F. Mori;J. C. Lim;C. A. Miller
  10. An AOCS/CSMA Detergent Industry Conference v.154 New Horizons J. T. Weizeorick
  11. J. Am. Oil Chem. Soc v.67 K. H. Raney;H. Benson
  12. J. Am. Oil Chem. Soc. v.45 W. T. Sherbs;B. E. Gordon
  13. Pre. the 3rd Chemical Week Asia/Paciffic Conference E. J. Smulders;P. Kings
  14. Surfactant Science Series v.20 Detergency Theory and Tech W. G. Cutler;E. Kissa
  15. KS M 2715-1988 한국공업규격 : 의류용합성세제
  16. J. Am. Oil Chem. Soc v.74 I. Hama;T. Okamoto;E. Hidai;K. Yomada
  17. U.S. Patent No. 5,374,750 Yuju Fujimori;Hama Itsuo;Nakamoto Yuichi
  18. U.S Patent No. 5,220,046 Weerasooriya;Upali;Cynthia;John Lin
  19. J. Colloid Sci. v.3 P. Debye
  20. Solvent Properties of Surfactant Solution K. Shinoda
  21. J. Colloid Interface Sci. v.26 K. Shinoda;H. Saito
  22. J. Phys. Chem. v.68 K. Shinoda;H. Arai
  23. Pre. the 88th AOCS Annual Meeting & Expo v.11 D. L. Smith
  24. U.S. Patent No. 4,775,653 Leach, Bruce;Mark Shannon;Donald Wharry
  25. The Manual of the Kruss Spining Drop Tensiometer