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Functionalized Nanoporous Thin Films From Blends of Block Copolymers and Homopolymers Interacting via Hydrogen Bonding

Authors

  • Cé Guinto Gamys,

    1. Institute of Condensed Matter and Nanosciences, Bio- and Soft Matter, Université catholique de Louvain, Place L. Pasteur, 1, Louvain-la-Neuve, Belgium
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  • Alexandru Vlad,

    1. Information and Communication Technologies, Electronics and Applied Mathematics (ICTEAM), Université catholique de Louvain, Place du Levant, 3, Louvain-la-Neuve, Belgium
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  • Olivier Bertrand,

    1. Institute of Condensed Matter and Nanosciences, Bio- and Soft Matter, Université catholique de Louvain, Place L. Pasteur, 1, Louvain-la-Neuve, Belgium
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  • Jean-François Gohy

    Corresponding author
    1. Institute of Condensed Matter and Nanosciences, Bio- and Soft Matter, Université catholique de Louvain, Place L. Pasteur, 1, Louvain-la-Neuve, Belgium
    • Institute of Condensed Matter and Nanosciences, Bio- and Soft Matter, Université catholique de Louvain, Place L. Pasteur, 1, Louvain-la-Neuve, Belgium.
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Abstract

Blends of poly(acrylic acid)-block-polystyrene (PAA-b-PS) copolymers and poly(ethylene oxide) (PEO) homopolymers in which PAA and PEO interact via hydrogen bonds were used as precursors of nanoporous PS thin films with cavities decorated by PAA blocks. The presence of free carboxylic acid groups inside the pores was evidenced by fluorescence spectroscopy after reacting them with a diazomethane functionalized fluorescent dye. These nanoporous thin films were then used as templates for the preparation of dense arrays of silica nanodots.

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