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 Anionic Sulfonate Surfactants Using Fatty Alcohol

Fatty alcohol을 이용한 음이온 술폰산계 계면활성제의 합성 및 물성

  • Cho, Jung-Eun (Dept. of Engineering Chemistry, Chungbuk National University) ;
  • Shin, Hye-Lin (Dept. of Engineering Chemistry, Chungbuk National University) ;
  • Jeong, Noh-Hee (Dept. of Engineering Chemistry, Chungbuk National University)
  • 조정은 (충북대학교 공과대학 공업화학과) ;
  • 신혜린 (충북대학교 공과대학 공업화학과) ;
  • 정노희 (충북대학교 공과대학 공업화학과)
  • Received : 2018.06.15
  • Accepted : 2018.09.28
  • Published : 2018.09.30
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Abstract

In this study, surfactants were synthesized using fatty alcohols of 8, 10, 12 and 14 carbon chains length. The structures of the synthesized surfactants was confirmed by FT-IR and $^1H$-NMR analysis. The surface tension of the diluted surfactant was measured as 26~32 mN/m depending on the carbon length and the critical micelle concentration was measured as $10^{-3}{\sim}10^{-5}mol/L$.The minimum value per molecule of the synthesized sulfonic acid surfactant is 1.68 to $1.30nm^2$. The physical properties of the synthesized surfactants were determined by measuring the critical micelle concentration, foaming power, emulsifying stability, and contact angle.

본 연구에서는 지방 알코올을 이용하여 탄소 길이에 따른 술폰산계 음이온 계면활성제를 합성하였으며, 합성한 계면활성제들의 구조를 FT-IR과 $^1H$ NMR 분석을 통하여 확인하였다. 음이온 계면활성제의 임계미셀농도(critical micelle concentration: cmc)는 $10^{-5}{\sim}10^{-3}mol/L$이며, 임계미셀농도에서의 표면장력 값은 26~32 mN/m이었다. 합성한 술폰산계 계면활성제의 분자당 최소 영역값은 $1.68{\sim}1.30nm^2$이다. 음이온 계면활성제의 분자당 최소 영역이 감소하였다. 합성한 계면활성제의 물성은 임계 미셀농도, 기포력, 유화력, 접촉각을 측정하였다.

Keywords

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