title: Hexagonally ordered nanoparticles templated using a block copolymer film through Coulombic interactions.
abstract: We present a novel and simple method for forming hexagonal gold nanoparticle arrays that uses Coulombic interactions between negatively charged gold nanoparticles on positively charged vertically oriented poly(4-vinylpyridine) cylinders formed in a spin cast polystyrene-b-poly(4-vinylpyridine) block copolymer film. Exposure of the block copolymer film to dibromobutane vapor quaternizes and crosslinks the poly(4-vinylpyridine) domains which allows for the templated deposition of gold nanoparticles into a self-assembled hexagonal array through electrostatic interactions. These systems can form the basis for sensors or next generation nanoparticle based electronics.
authors.affiliation: Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742-2115, USA. leewj1@gmail.com
authors.forename: Wonjoo
authors.initials: W
authors.lastname: Lee
authors.forename: Seung Yong
authors.initials: SY
authors.lastname: Lee
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.forename: Oded
authors.initials: O
authors.lastname: Rabin
authors.forename: R M
authors.initials: RM
authors.lastname: Briber
mesh_terms: D003460:Crystallization / Q000379:methods*; D008422:Materials Testing; D008567:Membranes, Artificial; D008968:Molecular Conformation; D054802:Molecular Imprinting / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D055672:Static Electricity; D013499:Surface Properties
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D011137:Polystyrenes; D011145:Polyvinyls; D011725:Pyridines; C509607:polystyrene-block-poly(4-vinylpyridine)