title: One-pot synthesis of robust core/shell gold nanoparticles.
abstract: A one-pot synthesis of thermally stable core/shell gold nanoparticles (Au-NPs) was developed via surface-initiated atom transfer radical polymerization (ATRP) of n-butyl acrylate (BA) and a dimethacrylate-based cross-linker. The higher reactivity of the cross-linker enabled the formation of a thin cross-linked polymer shell around the surface of the Au-NP before the growth of linear polymer chains from the shell. The cross-linked polymer shell served as a robust protective layer, prevented the dissociation of linear polymer brushes from the surfaces of Au-NPs, and provided the Au-NPs excellent thermal stability at elevated temperature (e.g., 110 degrees C for 24 h). This synthetic method could be easily expanded for preparation of other types of inorganic/polymer nanocomposites with significantly improved stability.
authors.affiliation: Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA.
authors.forename: Hongchen
authors.initials: H
authors.lastname: Dong
authors.forename: Manzhou
authors.initials: M
authors.lastname: Zhu
authors.forename: Jeong Ae
authors.initials: JA
authors.lastname: Yoon
authors.forename: Haifeng
authors.initials: H
authors.lastname: Gao
authors.forename: Rongchao
authors.initials: R
authors.lastname: Jin
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Matyjaszewski