ORBi: Dauginet Laurence - Surface Modification of Polycarbonate and Poly(ethyleneterephthalate) Films and Membranes by Polyelectrolyte Deposition

Reference : Surface Modification of Polycarbonate and Poly(ethyleneterephthalate) Films and Membrane...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/59051

Title :	Surface Modification of Polycarbonate and Poly(ethyleneterephthalate) Films and Membranes by Polyelectrolyte Deposition
Language :	English
Author, co-author :	Dauginet, Laurence [Universite catholique de Louvain > > > >]
	Duwez, Anne-Sophie [Université catholique de Louvain. Present address: University of Liège > > > >]
	Legras, Roger [Université catholique de Louvain > > > >]
	Demoustier-Champagne, Sophie [Université catholique de Louvain > > > >]
Publication date :	2001
Journal title :	Langmuir
Publisher :	American Chemical Society
Volume :	17
Pages :	3952-3957
Audience :	International
ISSN :	0743-7463
e-ISSN :	1520-5827
City :	Washington
Country :	DC
Keywords :	[en] polymers ; membranes
Abstract :	[en] The surface modification by chemical or physical adsorption of a polyelectrolyte (polyallylamine, PAH) was established using hydrolyzed polycarbonate (PC) and poly(ethylene terephthalate) (PET) thick and thin films. Contact angle data indicated changes in the hydrophilicity of PET film surfaces in terms of the chemical treatment. XPS analysis showed that the immobilization of PAH on PET and PC films was effective and that the amount of chemically or/and physically bounded PAH depends on the pH of the electrolyte solution used for the adsorption. Similar treatments have been successfully applied to polymeric track-etched membranes. These modified membranes have been used as templates for the synthesis of polypyrrole (PPy) nanotubules. FE-SEM analysis showed that much thicker PPy tubules were obtained in modified membranes than in virgin ones. This indicates that the surface chemistry of the pore walls plays an important role in the morphology of the nanostructures synthesized within the pores
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/59051

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