Amine-functionalized nanoporous thin films from a poly(ethylene oxide)-block-polystyrene diblock copolymer bearing a photocleavable o-nitrobenzyl carbamate junction

Gamys, Ce Guinto;Schumers, Jean-Marc;Vlad, Alexandru;Fustin, Charles-André;Gohy, Jean-François
(2012) Soft Matter — Vol. 8, n° 16, p. 4486 (2012)

Files

SoftMatter8_2012_4486.pdf
  • Closed Access
  • Adobe PDF
  • 745.79 KB
Request a copy

Details

Authors
Abstract
The synthesis of a poly(ethylene oxide)-block-polystyrene (PEO-b-PS) diblock copolymer bearing an o-nitrobenzyl carbamate junction is reported via a one-pot atom transfer radical polymerization (ATRP)–copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC). The accordingly obtained block copolymer was self-assembled into thin films showing, after solvent annealing, ordered PEO cylinders oriented normal to the film surface and embedded in a PS matrix. In the next step, the easy photocleavage of the o-nitrobenzyl carbamate junction and the subsequent removal of the PEO nanophase were demonstrated. This led to amine-functionalized nanoporous PS thin films as evidenced by the successful coupling of a fluorescent dye bearing a carboxylic acid group. The possibility to obtain fluorescent nanopores was then further exploited to pattern the films using a photolithographic mask.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Gamys, C. G., Schumers, J.-M., Vlad, A., Fustin, C.-A., & Gohy, J.-F. (2012). Amine-functionalized nanoporous thin films from a poly(ethylene oxide)-block-polystyrene diblock copolymer bearing a photocleavable o-nitrobenzyl carbamate junction. Soft Matter, 8(16), 4486. https://doi.org/10.1039/c2sm07056a (Original work published 2012)