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Issue 42, 2016
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Strong and tuneable wet adhesion with rationally designed layer-by-layer assembled triblock copolymer films

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Abstract

In this study the wet adhesion between Layer-by-Layer (LbL) assembled films of triblock copolymer micelles was investigated. Through the LbL assembly of triblock copolymer micelles with hydrophobic, low glass transition temperature (Tg) middle blocks and ionic outer blocks, a network of energy dissipating polymer chains with electrostatic interactions serving as crosslinks can be built. Four triblock copolymers were synthesized through Atom Transfer Radical Polymerisation (ATRP). One pair had a poly(2-ethyl-hexyl methacrylate) middle block with cationic or anionic outer blocks. The other pair contained the same ionic outer blocks but poly(n-butyl methacrylate) as the middle block. The wet adhesion was evaluated with colloidal probe AFM. To our knowledge, wet adhesion of the magnitude measured in this study has not previously been measured on any polymer system with this technique. We are convinced that this type of block copolymer system grants the ability to control the geometry and adhesive strength in a number of nano- and macroscale applications.

Graphical abstract: Strong and tuneable wet adhesion with rationally designed layer-by-layer assembled triblock copolymer films

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Publication details

The article was received on 18 Jul 2016, accepted on 07 Oct 2016 and first published on 08 Oct 2016


Article type: Paper
DOI: 10.1039/C6NR05659H
Citation: Nanoscale, 2016,8, 18204-18211
  • Open access: Creative Commons BY-NC license
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    Strong and tuneable wet adhesion with rationally designed layer-by-layer assembled triblock copolymer films

    A. Träger, S. A. Pendergraph, T. Pettersson, T. Halthur, T. Nylander, A. Carlmark and L. Wågberg, Nanoscale, 2016, 8, 18204
    DOI: 10.1039/C6NR05659H

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