Control of Nanoparticle Location in Block Copolymers | Zendy

Julia J. Chiu | Zendy; Bumjoon J. Kim | Zendy; Edward J. Krämer | Zendy; David J. Pine | Zendy

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Control of Nanoparticle Location in Block Copolymers

Author(s) -

Julia J. Chiu,

Bumjoon J. Kim,

Edward J. Krämer,

David J. Pine

Publication year - 2005

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja050376i

Subject(s) - chemistry , copolymer , nanoparticle , block (permutation group theory) , chemical engineering , polymer chemistry , nanotechnology , organic chemistry , polymer , materials science , engineering , geometry , mathematics

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.

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