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Cetyl Trimethyl Ammonium Bromide Micelle에 대한 용매효과

Title
Cetyl Trimethyl Ammonium Bromide Micelle에 대한 용매효과
Other Titles
Solvent effect on the formation of cetyl trimethyl ammonium bromide micells : light scattering experiment of CTAB solution
Authors
崔姬淑
Issue Date
1979
Department/Major
대학원 화학과
Keywords
Cetyl Trimethyl Ammonium Bromide Micelle용매효과CTAB용액광산란
Publisher
이화여자대학교 대학원
Degree
Master
Abstract
계면활성제 Cetyl Trimethyl Ammonium Bromide(CTAB) 용액(Dimethyl sulfoxide-물 혼합용매)의 광산란실험을 Aminoo Absolute Light scattering Photometer를 사용하여 25℃에서 수행하였다. 용매의 조성변화(X_(DMSO)=0.000, 0.098, 0.201)에 따른 CTAB 용액의 행동을 보면 DMSO의 성분이 증가함에 따라 critical micelle concentration(C.M.C)의 증가를 가져왔으며 micelle의 aggregation number는 감소하였다. 이는 DMSO의 조성이 많은 용액일수록 CTAB-micelle(미셀)의 안정도가 약화되어 미셀의 크기가 작아지는 것으로 해석되며 DMSO 분자의 물분자에 대한 우세한 친화력 때문에 미셀형성을 억제시키는 효과를 가진다고 볼 수 있다.;The light scattering experiment of the CTAB surfactant solution is carried out with Aminco Absolute Light Scattering Photometer at 25℃. The behavior of CTAB solution depending on the change of the solvent composition (X_(DMSO)=0.000, 0.098, 0.201) has been observed. As the molefraction of DMSO is increased, the critical micelle concentration of the surfactant is also increased while the aggregation number of micelle is decreased. This can be explained that as the DMSO composition is increased, the stability of CTAB-Micelle is weakened, which results in the micelle size becoming small. Moreover, DMSO molecule has an inhibitive effect on the formation of CTAB-Micelle due to its dominant affinity with the water molecule.
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일반대학원 > 화학·나노과학과 > Theses_Master
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