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Hybrid Compound Block Copolymer Micelles Encapsulating Gold Nanoparticles
Author(s) -
Mantzaridis Christos,
Pispas Stergios
Publication year - 2008
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.200800402
Subject(s) - micelle , copolymer , colloidal gold , dynamic light scattering , materials science , nanoparticle , chemical engineering , toluene , polymer chemistry , nanotechnology , chemistry , organic chemistry , polymer , aqueous solution , composite material , engineering
We report here on the formation of hybrid compound block copolymer micelles encapsulating gold nanoparticles, utilizing a direct and general preparation method. The giant hybrid compound micelles are structured with micelles of PS‐ b ‐P2VP with gold nanoparticles in their P2VP core and PI‐ b ‐PS chains as the outer part of the compound micelles. The gold nanoparticles were produced using gold ion‐loaded PS‐ b ‐P2VP micelles as a nanoreactor, in a PS selective solvent (toluene), by the subsequent reduction of gold ions. The synthesis of the gold nanoparticles was monitored by UV‐vis spectroscopy. The gold containing micelles were then encapsulated in larger micelles of PI‐ b ‐PS copolymer, by successive utilization of toluene and heptane with the intermediate evaporation of toluene. The nanoassembly of the compound materials comprised a PI corona and a PS compound core, with P2VP/Au 0 domains, and was characterized using UV‐vis spectroscopy, dynamic light scattering and transmission electron microscopy.