title: In situ metallization of patterned polymer brushes created by molecular transfer print and fill.
abstract: A chemical pattern consisting of end-grafted polystyrene brushes (20 nm lines on a 40 nm pitch) on the native oxide of silicon wafers was defined by molecular transfer printing from assembled block co-polymer films. End-grafted hydroxyl-terminated poly(2-vinyl pyridine) brushes were selectively deposited in the interspatial regions. The poly(2-vinyl pyridine) regions selectively sequester acidic HAuCl4 from solution and form arrays of small Au nanoparticles upon exposure to oxygen plasma within the confines of the macromolecular brush layer. This print and fill process to pattern polymer brushes is a generalizable strategy to create functional chemical surface patterns.
authors.affiliation: Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53704, USA. cthode@wisc.edu
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Thode
authors.forename: Peter L
authors.initials: PL
authors.lastname: Cook
authors.forename: Yaming
authors.initials: Y
authors.lastname: Jiang
authors.forename: M
authors.initials: M
authors.lastname: Serdar Onses
authors.forename: Shengxiang
authors.initials: S
authors.lastname: Ji
authors.forename: Franz J
authors.initials: FJ
authors.lastname: Himpsel
authors.forename: Paul F
authors.initials: PF
authors.lastname: Nealey
mesh_terms: D002712:Chlorides / Q000737:chemistry; D006046:Gold / Q000737:chemistry; D017612:Gold Compounds / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods*; D011137:Polystyrenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*
chemical_list: D002712:Chlorides; D017612:Gold Compounds; D011137:Polystyrenes; D011145:Polyvinyls; C058671:poly(2-vinylpyridine); D006046:Gold