Publications [#263411] of Stefan Zauscher

Papers Published

1. Kaholek, M; Lee, WK; LaMattina, B; Caster, KC; Zauscher, S, Fabrication of Stimulus-Responsive Nanopatterned Polymer Brushes by Scanning-Probe Lithography, Nano Letters, vol. 4 no. 2 (February, 2004), pp. 373-376, American Chemical Society (ACS) [nl035054w], [doi]
   (last updated on 2023/06/01)

   Abstract:
   Stimulus-responsive, surface confined poly(N-isopropylacrylamide) (pNIPAAM) brush nanopatterns were prepared on gold-coated silicon substrates in a "grafting-from" approach that combines "nanoshaving", a scanning probe lithography method, with surface-initiated polymerization using atom transfer radical polymerization (ATRP). The reversible, stimulus-responsive conformational height change of these nanopatterned polymer brushes was demonstrated by inverse transition cycling in water, and water-methanol mixtures (1:1, v:v). Our findings are consistent with the behavior of laterally confined and covalently attached polymer chains, where chain mobility is restricted largely to the out-of-plane direction. Our nanofabrication approach is generic and can likely be extended to a wide range of vinyl monomers.

   Keywords:
   nanolithography;nanopatterning;nanostructured materials;polymerisation;polymers;