Fabrication of micropatterned stimulus-responsive polymer-brush 'anemone'

The fabrication of stimulus-responsive patterned PNIPAAM-brush microstructures were presented thereby relying on the combination of three phenomena. These include unusual phase separation of two differently functionalized alkanethiols, the preferred deposition of the bromine-terminated thiol ink component and the apparently enhanced ink transfer of the re-inked stamp at its periphery. The polymer brushes were prepared by adding a solution of NIPAAM monomer to an organometallic catalyst, which was then transferred into flasks containing the sample substrates with immobilized patterned initiator. The patterning approach and the subsequent SI-ATRP are generic, and can most likely be extended to include a wide range of vinyl monomers or mixtures of different vinyl monomers, where the patterns can be amplified into annular polymer-brush microstructures through SI-ATRP.

Full Text

Duke Authors

Cited Authors

  • Chen, T; Zhang, J; Chang, DP; Garcia, A; Zauscher, S

Published Date

  • 2009

Published In

Volume / Issue

  • 21 / 18

Start / End Page

  • 1825 - 1829

International Standard Serial Number (ISSN)

  • 0935-9648

Digital Object Identifier (DOI)

  • 10.1002/adma.200802484

Citation Source

  • SciVal