Self-organized monolayer films of stimulus-responsive micelles


Webber G., Wanless E., BÜTÜN V., Armes S., Biggs S.

NANO LETTERS, vol.2, no.11, pp.1307-1313, 2002 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2 Issue: 11
  • Publication Date: 2002
  • Doi Number: 10.1021/nl025781b
  • Journal Name: NANO LETTERS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.1307-1313

Abstract

Weakly charged micelles of poly(2-(dimethylamino)ethyl methacrylate) [10% quaternized]-block-poly(2-(diethylamino)ethyl methacrylate) (10qDMA-DEA) adsorb to form a highly ordered monolayer at the mica-solution interface at pH 8.9. Rinsing with solvent at pH 9 has little effect on the adsorbed layer. Reduction of the pH to 4 results in an irreversible swelling of the thin film, in contrast to a micelle-to-unimer transition seen for the diblock in bulk solution. The resilience of the adsorbed layer opens up potential nanotechnological applications.