Reference : Nanoporous thin films from ionically connected diblock copolymers
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/117468
Nanoporous thin films from ionically connected diblock copolymers
English
Yu, Haizhou [Université catholique de Louvain (UCL) > Institute of Condensed Matter and Nanosciences > Bio and Soft Matter > >]
Stoffelbach, François [University of Liège (ULg) and University of Paris VI > Department of Chemistry (Liège) > Center for Education and Research on Macromolecules (CERM, Liège) and Laboratoire de Chimie des Polymères (Paris) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Fustin, Charles-André [Université catholique de Louvain (UCL) > Institute of Condensed Matter and Nanosciences > Bio and Soft Matter > >]
Gohy, Jean-Françcois [Université catholique de Louvain (UCL) > Institute of Condensed Matter and Nanosciences > Bio and Soft Matter > >]
May-2012
European Polymer Journal
Elsevier Science
48
5
940-944
Yes (verified by ORBi)
International
0014-3057
[en] nanostructured materials ; nanofoam
[en] An ionically connected polystyrene-block-poly(ethylene oxide) diblock copolymer (PS−+PEO) has been prepared by blending a PEO block functionalized by a dimethylamino group at one extremity with a sulfonic acid terminated PS block. Proton transfer occurs from the sulfonic acid to the dimethylamino group, resulting in the formation of an ion pair acting as a junction between the two polymer blocks. This copolymer was further used to prepare thin films with a cylindrical morphology consisting of PEO cylinders embedded in a PS matrix and oriented perpendicularly to the film surface. Nanoporous thin films with sulfonate groups on the pore walls have been finally obtained after solvent extraction of the PEO microphases. The presence of those sulfonate groups was evidenced by grafting a positively charged fluorescent dye on the pore walls.
Center for Education and Research on Macromolecules (CERM)
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; The European FP7 SELFMEM project
Researchers
http://hdl.handle.net/2268/117468
10.1016/j.eurpolymj.2012.03.006
http://pdn.sciencedirect.com/science?_ob=MiamiImageURL&_cid=271558&_user=532038&_pii=S0014305712000687&_check=y&_origin=browse&_zone=rslt_list_item&_coverDate=2012-05-31&wchp=dGLzVBA-zSkzk&md5=faaf341f57a68d0da3ed7d7c62196bf7/1-s2.0-S0014305712000687-main.pdf

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