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Reversible Switching of Lamellar Liquid Crystals into Micellar Solutions using CO 2
Author(s) -
Zhang Jianling,
Han Buxing,
Li Wei,
Zhao Yueju,
Hou Minqiang
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200803753
Subject(s) - lamellar structure , pulmonary surfactant , liquid crystal , materials science , chemical engineering , phase (matter) , phase transition , micelle , lamellar phase , chemical physics , chemistry , thermodynamics , aqueous solution , organic chemistry , optoelectronics , composite material , physics , engineering
Changing under pressure : Compressed CO 2 can switch the surfactant sodium bis‐2‐ethylhexylsulfosuccinate/water system between a lamellar liquid crystal (L α ) phase and a micellar solution (L 1 ) reversibly at ambient temperature. Applications of this simple, clean, and energy‐efficient process in material synthesis are explored, along with a possible mechanism for the phase‐transition phenomenon.