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Amphiphilic Patchy Composite Colloids
Author(s) -
Ding Shujiang,
Zhang Chengliang,
Wei Wei,
Qu Xiaozhong,
Liu Jiguang,
Yang Zhenzhong
Publication year - 2009
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200800657
Subject(s) - amphiphile , composite number , colloid , materials science , alkyl , chemical engineering , silane , colloidal silica , pulmonary surfactant , carbon fibers , particle (ecology) , copolymer , composite material , organic chemistry , chemistry , polymer , coating , oceanography , engineering , geology
A new approach to fabricate patchy silica/polymeric gel composite colloids with amphiphilic performance is reported. The amphiphilic performance is rendered by selectively modifying the silica framework with a silane that contains an oleophilic alkyl chain. The patchy composite colloids are dispersible in both water and oil, and may be used as a solid particle surfactant. The modified silica framework can also assist other functional materials to disperse in a desired media. The corresponding silica/carbon composite colloids become amphiphilic after a sequential activation of carbon and modification of silica, and meanwhile possess as good electron conductivity as the as‐prepared silica/carbon composite colloids.