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Encapsulation of a Single Metal Nanoparticle with Tunable Size in a Monodisperse Polymer Microcapsule
Author(s) -
Li Haiqing,
Ha ChangSik,
Kim Il
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.200800629
Subject(s) - dispersity , materials science , nanoparticle , aqueous solution , polymer , chemical engineering , nanotechnology , styrene , palladium , polymer chemistry , copolymer , chemistry , organic chemistry , composite material , catalysis , engineering
A versatile approach to fabricate monodisperse poly[styrene‐ co ‐(divinyl benzene)] (PS‐ co ‐DVB) microcapsules that contain a single gold nanoparticle (AuNP) has been demonstrated. Using the PS‐ co ‐DVB microcapsule as a microreactor, aqueous HAuCl 4 and NaBH 4 solutions are subsequently infiltrated. The size of the resulting AuNP inside of the PS‐ co ‐DVB microcapsules is easily tunable by controlling the repeated infiltration cycles of aqueous HAuCl 4 and NaBH 4 . PS‐ co ‐DVB microcapsules that contain a single silver and palladium nanoparticle are also obtained by following a similar protocol.