헤드그룹이 두 개인 음이온성 계면활성제의 미셀특성

• 영문명: Micellar Properties of Two-Headed Anionic Surfactants
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 김명수(Myeong Soo Kim) 정환경(Kwan Kyeong Jeong) 정노희(Noh Hee Jeong) 남기대(Ki Dae Nam)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제18권 제2호, 111~117쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2001.06.30

영문 초록

Density, viscosity, conductance, dye solubility and carbon-13 nmr studies were performed in aqueous solution of three disodium 4-n-alkyl-3-sulfonatosuccinate anionic surfactant at 20℃. The cmc values were 0.14 mol/l for the disodium-4-n-octyl-3-sulfonatosuccinate(R₈S), 0.041mol/l for the disodium-4-n-decyl-3-sulfonatosuccinate(R₁₀S), and 0.018mol/l for the disodium-n-dodecyl-3-sulfonatosuccinate 〈R₁₂S). The aggregation numbers determined viscometrically and conductimetrically were 28 for R₈S, 48 for R₁₀S, and 67 for R₁₂S. The volume changes upon micellization were 8.9㎤/mol for R₈S, 9.5㎤/mol for R₁₀S, and 10.1㎤/mol for R₁₂S. Binding constants for the dye pada to the micelles and the fractions of unbound counter-ion were also obtained. The two polar heads with their carbon linkage were likely in an aqueous environment in the R₈S micelles with the micelles themselves being spherical.

목차

Abstract

1. 서론

2. 실험

3. 결과 및 고찰

4. 결론

참고문헌

키워드

disodium 4-n-alkyl-3-sulfonatosuccinate micellization dye solubility two-headed anionic surfactant