Reference : New nanostructured materials based on fullerene and biodegradable polyesters
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/5239
New nanostructured materials based on fullerene and biodegradable polyesters
English
Stoilova, Olya [Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria > > > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Mouithys-Mickalad, Ange mailto [University of Liège (ULg) > > Center for Oxygen R&D (CORD) > >]
Manolova, Nevena [Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria > > > >]
Rashkov, Iliya [Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria > > > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
3-Oct-2006
Chemistry of Materials
Amer Chemical Soc
18
20
4917-4923
Yes (verified by ORBi)
International
0897-4756
Washington
[en] biomaterial ; nanomedicine ; carbon fullerene ; electrospinning ; fiber
[en] Star-shaped poly(epsilon-caprolactone) (PCL) with a fullerene (C-60) core, C-60[N(CH2)(12)OPCLOH](x), was successfully synthesized by reaction of azide-terminated PCL with C-60. Both the experimental conditions and the stoichiometry were optimized, such that an average of six PCL chains was grafted per fullerene core. The molecular weight of the polyester chains directly controlled the length of the arms of the star-shaped polymers. Singlet oxygen was generated on irradiation of the C-60[N(CH2)(12)OPCLOH] x nanohybrids. These C-60[N(CH2)(12)OPCLOH](x) nanohybrids were then processed in two kinds of nanomaterials. First, they were encapsulated within the core of micelles formed by biocompatible amphiphilic block copolymers. In water, the particle size distribution of these nanoparticles was narrow, and their diameter was in the range of 100 to 200 nm. Second, C-60-containing micro-/nanosized polymer fibers were prepared, for the first time, by electrospinning. The average diameter of the fibers was varied by tuning the PCL/C-60[N(CH2)(12)OPCLOH](x) weight ratio. Grafting of polyester chains onto C-60 is thus a suitable strategy for producing easily processable C-60 and attractive building blocks for incorporation of C-60 in nanomaterials.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; The Bulgarian National Science Fund, Grant NANOBIOMAT, NT 4-01/04 ; The bilateral cooperation and Ministry of Education and Science of Bulgaria
Researchers
http://hdl.handle.net/2268/5239
10.1021/cm060796m
http://pubs.acs.org/doi/pdf/10.1021/cm060796m

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