Biomaterials, Biodegradables and Biomimetics Research Group

Papers in Scientific Journals

Nanocomposites of poly(ε-caprolactone) doped with titanium species

Abstract

Organic–inorganic hybrid nanocomposites were prepared via in situ sol–gel process. The organic phase is a biodegradable polymer, poly(e-caprolactone) (PCL), while the tetrabutyl titanate (TBT, Ti(OBu)4) was used as inorganic precursor. Synthesis parameters like acidity medium and precursor amount were investigated in order to assess their influence on hybrid properties. The obtained nanocomposites were characterised by thermal analysis, spectroscopic techniques, transmission electronic microscopy (TEM) and X-ray diffraction to gather infor- mation on the structure of the nanocomposites. Mechanical properties and biodegradability were also evaluated. A reaction mechanism based on Fourier transform infrared spectroscopy and NMR results was proposed using methyl acetate as model compound. TEM micrographs of the nanocomposites show a fine good nanoparticles dispersion. Acidic conditions and 10 wt% of precursor lead to a nanocomposite with higher mechanical properties and biodegradability than PCL.

Journal
Journal of Materials Science
Volume
48
Issue
9
Pagination
3578-3585
Publisher
Springer
ISSN
0022-2461
URL
http://link.springer.com/article/10.1007%2Fs10853-013-7154-7
Keywords
nanocomposites, titanium
Rights
Open Access
Peer Reviewed
Yes
Status
published
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