한국응용과학기술학회지 (Journal of the Korean Applied Science and Technology)

  • 제35권3호
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  • Pages.579-586
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  • 2018
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  • 1225-9098(pISSN)
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  • 2288-1069(eISSN)
한국응용과학기술학회 (The Korean Society of Applied Science and Technology)
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Fatty alcohol을 이용한 음이온 술폰산계 계면활성제의 합성 및 물성

Synthesis and Properties of Anionic Sulfonate Surfactants Using Fatty Alcohol

  • 조정은 (충북대학교 공과대학 공업화학과) ;
  • 신혜린 (충북대학교 공과대학 공업화학과) ;
  • 정노희 (충북대학교 공과대학 공업화학과)
  • 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)
  • 투고 : 2018.06.15
  • 심사 : 2018.09.28
  • 발행 : 2018.09.30
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초록

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.

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.

키워드

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