분광학적 방법에 의한 계면활성제의 확인

• 영문명: Qualitative Identification of Surfactants by Spectroscopic Method
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 안종일(Chong Il Ahn) 조종희(Jong Hoi Cho) 박신자(Shin Ja Park) 김종길(Jong Kil Kim) 전지혜(Ji Hye Jeon) 이정복(Jung Bock Lee) 박홍수(Hong Soo Park)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제18권 제4호, 306~315쪽, 전체 10쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2001.12.30

영문 초록

Our study is aimed at proposal of systematic verification method of molecular structure using measuring method of selective ionic determination and spectrometry on 34 kinds of surfactants such as sodium dodecyl sulfate(SDS) which are most widely used today. In the IR spectrum, unsaturated fatty acids reveal themselves by HC= at 3000~3020㎝⁻¹, and intensity of 720㎝⁻¹ depends on carbon length of alkyl group. Also ethylene oxide(EO) adducts exhibit weak characteristic bands by -CH₂-CH₂-O at 1350, 1100 and 950㎝⁻¹. Isethionate can be distinguished from diester succinate by intensity ratio of 1740 and 1200㎝⁻¹ spectrums, the ratio of latter is close to 1 due to 2 carboxylate radical in diester succinate. Quaternary ammonium salts exhibit characteristic band of C₄N⁺ at 1000-900㎝⁻¹. In the case of dialkyl dimethyl ammonium salts in quaternary ammonium surfactants, the spectrum of 3000㎝⁻¹ by N-CH₃ collapses to a very weak band at 3020㎝⁻¹. In ammonium heterocyclic derivatives, pyridinium salts show characteristic bands at 1640 and 1460㎝⁻¹, while imidazolinium salts exhibit characteristic band at 1620-1610㎝⁻¹. In the characteristic spectrum at 1080-1050㎝⁻¹ on OH radicals of the alkyl esters, primary alcohol appears as weak band and the 2 bands show in almost same intensity when primary and secondary alcohols exist together in one molecule. Also, alkyl ester of polyhydric alcohols appears as various broad band.

목차

Abstract

1. 서론

2. 실험

3. 결과 및 고찰

4. 결론

감사의 글

참고문헌

키워드

surfactant functional group ionic property infrared absorption spectroscopic method