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Distribution of cooperative unit size of amphiphilic molecules in the phase coexistence region in Langmuir monolayers

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Title: Distribution of cooperative unit size of amphiphilic molecules in the phase coexistence region in Langmuir monolayers
Authors: Hatta, E. Browse this author →KAKEN DB
Nishimura, T. Browse this author
Keywords: Langmuir monolayers
Phase transition
Isotherm
Compressibility
Cooperative unit
Issue Date: 1-Feb-2013
Publisher: Elsevier
Journal Title: Journal of Colloid and Interface Science
Volume: 391
Start Page: 111
End Page: 115
Publisher DOI: 10.1016/j.jcis.2012.09.074
PMID: 23110870
Abstract: The dependence of the size of the cooperative unit (C.U.) of amphiphilic molecules on the surface pressure (π) in the liquid expanded (LE) - liquid condensed (LC) phase coexistence region of Langmuir monolayers has been formulated and calculated using the measured isotherm data. The C.U. size changes largely depending on the surface pressure in the coexistence region and these submicroscopic molecular aggregates are not static objects but dynamic ones characterized by large fluctuations in size. It has been found that the C.U. size distribution can be a natural consequence from the significant change of monolayer compressibility, which reflects the large molecular area density fluctuations, in the coexistence region.
Type: article (author version)
URI: http://hdl.handle.net/2115/51770
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 八田 英嗣

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