Premium
Nanoporous Gold Film Prepared by the Epoxidation of Poly(styrene‐ b ‐butadiene) Diblock Copolymer Templated Micelles
Author(s) -
Kuo ShiaoWei,
Yang HongYi,
Wang ChihFeng,
Jeong KwangUn
Publication year - 2012
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201100493
Subject(s) - copolymer , micelle , nanoporous , styrene , materials science , polymer chemistry , tetrahydrofuran , colloidal gold , nanoparticle , chemical engineering , chemistry , nanotechnology , organic chemistry , polymer , solvent , aqueous solution , composite material , engineering
A new approach is developed for the preparation of nanoporous gold (Au) films using diblock copolymer micelles as templates. Stable Au nanoparticles (NPs) with a narrow distribution are prepared by modifying NPs functionalized with 4‐(dimethylamino)pyridine ligands (DMAP Au NPs) and a spherical micelle formed through the epoxidation of poly(styrene‐ b ‐butadiene) diblock copolymer to produce poly(styrene‐ b ‐vinyl oxirane) (PS‐ b ‐PBO) in tetrahydrofuran–acetonitrile solution. The exchange reaction of 4‐aminothiophenol of PS‐ b ‐PBO diblock copolymer micelles with DMAP Au NPs can produce block copolymer–Au NPs composite films. After the pyrolysis of the diblock copolymer templates at a specific temperature to avoid the collapse of the Au NPs, a nanoporous Au film is prepared.