ORBi: Mecerreyes David - First example of an unsymmetrical difunctional monomer polymerizable by two living/controlled methods

Reference : First example of an unsymmetrical difunctional monomer polymerizable by two living/contr...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/3655

Title :	First example of an unsymmetrical difunctional monomer polymerizable by two living/controlled methods
Language :	English
Author, co-author :	Mecerreyes, David [IBM Almaden Research Center > > > >]
	Humes, J. [IBM Almaden Research Center > > > >]
	Miller, R. D. [IBM Almaden Research Center > > > >]
	Hedrick, James L. [IBM Almaden Research Center > > > >]
	Detrembleur, Christophe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Lecomte, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Jérôme, Robert [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	San Roman, J. [Instituto de Ciencia y Tecnologia de Polimeros > > > >]
Publication date :	19-Jul-2000
Journal title :	Macromolecular Rapid Communications
Publisher :	Wiley-V C H Verlag Gmbh
Volume :	21
Issue/season :	11
Pages :	779-784
Audience :	International
ISSN :	1022-1336
City :	Weinheim
Keywords :	[en] ring-opening polymerization (ROP) ; lactone ; radical polymerization ; atom transfer radical polymerization (ATRP)
Abstract :	[en] In this paper the synthesis and (co)polymerizations of 4-(acryloyloxy)-epsilon-caprolactone are reported. This new monomer can be polymerized in a living/controlled way by two different polymerization mechanisms: atom transfer radical polymerization (ATRP) and ring-opening polymerization (ROP). ATRP, which was carried out at 90 degrees C using NiBr2(PPh3)(2), leads to new polyacrylates containing pendant caprolactone functionalities with controlled molecular weights and narrow polydispersities (M-w/M(p)similar to 1.1). Alternatively, ROP of this functional epsilon-caprolactone bearing a pendant acrylate functionality leads to new poly(4-(acryloyloxy) caprolactone) as well as random copolymers when epsilon-caprolactone and L,L-lactide are added as comonomers. The (co)polymerizations were carried out using either (Al((OPr)-Pr-i)(3) in toluene at 25 degrees C or Sn(Oct)(2) as a catalyst at 110 degrees C producing (co)polymers with controlled molecular weights and narrow polydispersities (M-w/M(n)similar to 1.2). As a potential application, the introduction of acrylate pendant groups into the polyesters facilitated the preparation of cross-linked biodegradable materials either thermally or by irradiation with ultraviolet light radical curing.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	NSF Materials Research Science and Engineering Center on Polymer Interfaces and Macromolecular Assemblies under Cooperative agreement NSF DMR 9400354 ; Govierno Vasco
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/3655
DOI :	10.1002/1521-3927(20000701)21:11<779::AID-MARC779>3.0.CO;2-X
Other URL :	http://www3.interscience.wiley.com/cgi-bin/fulltext/72512548/PDFSTART

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