ORBi: Yu Haizhou - Nanoporous thin films from ionically connected diblock copolymers

Reference : Nanoporous thin films from ionically connected diblock copolymers


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/2268/117468

Title :	Nanoporous thin films from ionically connected diblock copolymers
Language :	English
Author, co-author :	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 [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 > >]
Publication date :	May-2012
Journal title :	European Polymer Journal
Publisher :	Elsevier Science
Volume :	48
Issue/season :	5
Pages :	940-944
Audience :	International
ISSN :	0014-3057
Keywords :	[en] nanostructured materials ; nanofoam
Abstract :	[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.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	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
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/117468
DOI :	10.1016/j.eurpolymj.2012.03.006
Other URL :	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

File(s) associated to this reference

Fulltext file(s):

	File	Commentary	Version	Size	Access
Restricted access	Yu H 2012 Eur Polm J 48,940-944.pdf		Publisher postprint	790.33 kB	Request copy

All documents in ORBi are protected by a user license.

Dspace v1.5