ORBi: Chikaoui-Grioune D. - Controlled radical polymerization of N-Vinylphthalimide using carboxyl-terminated trithiocarbonate as RAFT agent and preparation of microfibers via electrospinning technique

Reference : Controlled radical polymerization of N-Vinylphthalimide using carboxyl-terminated trithi...


	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/2268/64028

Title :	Controlled radical polymerization of N-Vinylphthalimide using carboxyl-terminated trithiocarbonate as RAFT agent and preparation of microfibers via electrospinning technique
Language :	English
Author, co-author :	Chikaoui-Grioune, D. [Université des Sciences et de la Technologie Houari Boumedienne, Alger, Algérie > Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques (CRAPC) > Laboratoire de Synthèse Macromoléculaire et Thio-organique Macromoléculaire > >]
	Aqil, Abdelhafid [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Zalfen, Alina M. [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Benaboura, A. [Université des Sciences et de la Technologie Houari Boumedienne, Alger, Algérie > > aboratoire de Synthèse Macromoléculaire et Thio-organique Macromoléculaire > >]
	Jérôme, Christine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Publication date :	15-Jul-2010
Journal title :	Journal of Applied Polymer Science
Publisher :	Wiley
Volume :	117
Issue/season :	2
Pages :	1005-1012
Audience :	International
ISSN :	0021-8995
Keywords :	[en] electrospinning ; radical polymerization ; reversible addition-fragmentation polymerization (RAFT)
Abstract :	[en] Reversible addition-fragmentation chain transfer (RAFT) polymerization of N-vinylphthalimide in N,N-dimethylformamide (DMF) solution was carried out using 2-carboxypropan-2-yl dodecyl trithiocarbonate as a reversible chain transfer agent in the presence of 2,2-azobisisobutyronitrile. The molecular weights of the polymers increased linearly with the monomer conversion and the molecular weight distributions were relatively narrow (PDI < 1.2). It is confirmed by chain extension reaction that the polymer prepared via RAFT polymerization can be used as a macro-RAFT agent. The structure of both polymers was characterized and confirmed by size-exclusion chromatography and 1H-NMR techniques. Ultrafine microfibers were prepared by electrospinning of poly(N-vinylphthalimide) in DMF solution. The effects of electrospinning process parameters such as voltage, tip-to-collector distance, and solution concentration on the morphology and the average size of the electrospun fibers were studied. To evaluate the fiber diameters, scanning electron microscope micrographs of the microfibers were performed.
Research units :	Center for Education and Research on Macromolecules (CERM)
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/64028
DOI :	10.1002/app.31619
Other URL :	http://www3.interscience.wiley.com/cgi-bin/fulltext/123334159/PDFSTART

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