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Holes and Ledges Created by Multilayer Assembly on Polyelectrolyte Brushes: A Novel Route for the Three‐Dimensional Nanoscale Design of Surfaces
Author(s) -
Llarena Irantzu,
Ramos Jagoba J. Iturri,
Donath Edwin,
Moya Sergio E.
Publication year - 2010
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200900752
Subject(s) - polyelectrolyte , materials science , polymer , nanometre , methacrylate , copolymer , styrene , self assembly , sulfonate , quartz crystal microbalance , nanoscopic scale , nanotechnology , layer by layer , polymer brush , micrometer , chemical engineering , polymer chemistry , layer (electronics) , sodium , chemistry , composite material , optics , organic chemistry , polymerization , physics , adsorption , engineering , metallurgy
The layer‐by‐layer (LBL) assembly of poly(diallyldimethylammonium chloride) and poly(sodium styrene sulfonate) on poly(sulfo propyl methacrylate) brushes resulted in films with nanometer‐ and micrometer‐sized holes and ledges, observed by atomic force microscopy and scanning electron microscopy. Polyelectrolyte assembly was followed by the quartz microbalance technique. The formation of ledges and holes is explained by the interaction of the brush polymers with the incoming polyelectrolytes during the LBL assembly, inducing a spatially localized and self‐organized accumulation of the assembled polymers.