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Hierarchically Ordered Silica Mesophases Using Mixed Surfactant Systems as Templates
Author(s) -
Xu AnWu,
Cai YuePeng,
Zhang HuaXin,
Zhang LiZhi,
Yu Jimmy C.
Publication year - 2002
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 - 10.1002/1521-3773(20021018)41:20<3844::aid-anie3844>3.0.co;2-8
Subject(s) - mesophase , lamellar structure , template , hexagonal crystal system , pulmonary surfactant , materials science , copolymer , chemical engineering , silicone , polymer science , nanotechnology , crystallography , chemistry , liquid crystal , composite material , engineering , optoelectronics , polymer
Unusual lamellar mesostructures of metal oxides are obtained with silicone surfactants as templates. The authors present evidence for the unrestricted chain configuration of silicone surfactants being responsible for the formation of lamellae. The addition of a copolymer can create a hexagonal mesophase in the layered walls, thus leading to a hierarchically ordered mesophase (see TEM image).