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Novel Structured Composites Formed from Gold Nanoparticles and Diblock Copolymers
Author(s) -
Chen Xi,
Liu Yang,
An Yingli,
Lü Juan,
Li Junbo,
Xiong Dean,
Shi Linqi
Publication year - 2007
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.200700166
Subject(s) - copolymer , micelle , materials science , polystyrene , ethylene oxide , composite number , polymer chemistry , oxide , aqueous solution , chemical engineering , composite material , chemistry , polymer , organic chemistry , engineering , metallurgy
We report a simple procedure to prepare a novel Au‐micelle composite with a core‐shell‐corona structure. This composite is prepared by reduction of tetrachloroauric acid (HAuCl 4 · 3H 2 O) in dilute aqueous solution containing polystyrene‐ block ‐poly(4‐vinylpyridine) micelles and poly(ethylene oxide)‐ block ‐poly(4‐vinylpyridine) copolymers. The micelles with a polystyrene core and a poly(4‐vinylpyridine) shell are transformed into Au‐micelle composites with a polystyrene core, a swollen hybrid Au/poly(4‐vinylpyridine) inner shell, and a poly(ethylene oxide) corona by direct physisorption of gold particles with poly(4‐vinylpyridine) chains.