Elaboration of Poly(ε-caprolactone)-g-TiNbO5 Nanocomposites via in situ Metal Complex Initiated Intercalative Polymerization
✍ Scribed by Stéphane Bruzaud; Jean-François Carpentier; Yves Grohens
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 243 KB
- Volume
- 289
- Category
- Article
- ISSN
- 1438-7492
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✦ Synopsis
Abstract
Summary: The preparation of poly(ε‐caprolactone)‐g‐TiNbO~5~ nanocomposites via in situ intercalative polymerization of ε‐caprolactone initiated by an aluminium complex is described. These nanocomposites were obtained in the presence of HTiNbO~5~ mineral pre‐treated by AlMe~3~, but non‐modified by tetraalkylammonium cations. These hybrid materials obtained have been characterized by Fourier transform infrared absorption spectroscopy, wide‐angle X‐ray scattering, scanning electron microscopy, and dynamic mechanical analysis. Layered structure delamination and homogeneous distribution of mineral lamellae in the poly(ε‐caprolactone) (PCL) is figured out and strong improvement of the mechanical properties achieved. The storage modulus of the nanocomposites is enhanced as compared to pure PCL and increases monotonously with the amount of the filler in the range 3 to 10 wt.‐%.
SEM image of the fractured surface of a PCL‐TiNbO~5~ nanocomposite film.
magnified imageSEM image of the fractured surface of a PCL‐TiNbO~5~ nanocomposite film.