Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Synthesis and Properties of Glycolic Acid Ester Type Cationic Surfactant

글리콜산 에스테르계 양이온 계면활성제의 합성 및 물성

  • Park, Jong-Kwun (Department of Engineering Chemistry, College of Engineering, Chungbuk National University) ;
  • Jeong, Noh-Hee (Department of Engineering Chemistry, College of Engineering, Chungbuk National University)
  • 박종권 (충북대학교 공과대학 공업화학과) ;
  • 정노희 (충북대학교 공과대학 공업화학과)
  • Received : 2013.07.27
  • Accepted : 2014.02.06
  • Published : 2014.03.30
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Abstract

A cationic ester type surfactant, namely N-2-hydroxy-3-(2-hydroxyacetoxy) proply-N,N-dimethyldodecylaminium chloride(HPDA) was synthesized and confirmed by FT-IR and $^1H$-NMR spectroscopy. Surface tensions on the diluted aqueous solutions of the synthetic compounds were measured and evaluated critical micelle concentration. Surface tension was 33~34 dyne/cm in the range of $10^{-3}{\sim}10^{-2}mol/L$ and critical micelle concentration(c.m.c) value was $8.5{\times}10^{-3}mol/L$ by surface tension method. Emulsifying properties of the synthetic surfactant(HPDA) and Sodium lauryl sulfate (SLS), tetradecyl trimethyl ammonium bromide (TTAB) was tested. As a results, synthetic glycolic acid ester type compounds(HPDA) has been confirmed as a good emulsifier. The foaming power and stability of synthesized ester type surfactant was measured by Ross-Miles method.

양이온 에스테르형 계면활성제인 N-2-hydroxy-3-(2-hydroxyacetoxy)proply-N,N-dimethyl dodecylaminium chloride (HPDA)를 합성하였고, FT-IR 과 $^1H$-NMR 분석으로 확인하였다. 합성화합물의 묽은 수용액에 대하여 표면장력을 측정하고, 임계미셀농도를 산정하였다. 표면장력은 $10^{-3}{\sim}10^{-2}mol/L$ 농도 범위에서 33~34 dyne/cm 이었고, 표면장력법에 의해 산정한 임계미셀농도는 $8.5{\times}10^{-3}mol/L$ 이었다. 합성 계면활성제인 HPDA와 SLS, TTAB의 유화특성을 시험하였다. 그 결과 HPDA가 우수한 유화제로 확인되었다. 그리고 Ross-Miles 방법으로 기포력과 기포안정성도 측정하였다.

Keywords

References

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