Holes and ledges created by multilayer assembly on polyelectrolyte brushes: a novel route for the three-dimensional nanoscale design of surfaces

Irantzu Llarena; Jagoba J Iturri Ramos; Edwin Donath; Sergio E Moya

doi:10.1002/marc.200900752

Holes and ledges created by multilayer assembly on polyelectrolyte brushes: a novel route for the three-dimensional nanoscale design of surfaces

Macromol Rapid Commun. 2010 Mar 16;31(6):526-31. doi: 10.1002/marc.200900752. Epub 2010 Jan 5.

Authors

Irantzu Llarena¹, Jagoba J Iturri Ramos, Edwin Donath, Sergio E Moya

Affiliation

¹ Paseo Miramón n° 182 Edificio Empresarial C, 20009 San Sebastian, Spain.

PMID: 21590936
DOI: 10.1002/marc.200900752

Abstract

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.