Study of phase separation and critical phenomena of micellar solutions by laser light scattering = 광산란 방법을 이용한 마이셀 용액의 상분리현상과 임계현상에 관한 연구

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Laser light scattering was performed to understand the composition effects of PEG-Lipids(PEG-DMPE) and Lipids(DMPC) on the phase separation and critical phenomena of micellar solutions. The scattering intensity (Ⅰ) and correlation length(ξ) were measured by static and dynamic light scattering as a function of temperature and composition. The scattering intensity and the correlation length diverge as temperature approaches a phase separation temperature ($T_{sp}$). The critical exponents (γ, ν) represent that the temperature dependence of I and ξ agrees with values of theoretical critical indices (γ=1.2, ν=0.6) in a three dimension. Furthermore, $T_{sp}$ strongly depends on the composition of the PEG-DMPE and DMPC, and can be understood by introducing the intermicellar interaction energy.
Advisors
Kim, Mahn-Wonresearcher김만원researcher
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
1999
Identifier
151540/325007 / 000973038
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 1999, [ ix, 60 p. ]

Keywords

Critical phenomena; Phase separation; Laser light scattering; Micellar solution; 마이셀용액; 임계현상; 상분리; 광산란

URI
http://hdl.handle.net/10203/48478
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=151540&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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