title: Control of nanoparticle location in block copolymers.
abstract: A simple procedure is described to incorporate gold nanoparticles and control their location within symmetric poly(styrene-b-2 vinyl pyridine) (PS-PVP) diblock copolymers. Gold nanoparticles coated with thiol-terminated PS and/or PVP homopolymer chains (Mn approximately 1300 and 1500 g/mol, respectively) are incorporated into alternating lamellar layers of PS and PVP (total Mn approximately 196 500 g/mol). The location of the particles is controlled by varying the composition of ligands on the particle surfaces. In particular, gold particles coated with 100% PS or PVP reside near the center of the respective polymer domains, while particles coated with a mixture of both homopolymers reside at the interfaces between the two blocks.
authors.affiliation: Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA.
authors.forename: Julia J
authors.initials: JJ
authors.lastname: Chiu
authors.forename: Bumjoon J
authors.initials: BJ
authors.lastname: Kim
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Kramer
authors.forename: David J
authors.initials: DJ
authors.lastname: Pine