Thermal, dielectrical and mechanical response of α and β-poly(vinilydene fluoride)/Co-MgO nanocomposites
1 IPC - Institute for Polymers and Composites, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
2 IN2UB and Departament d'Electrònica, Universitat de Barcelona, 08028 Barcelona, Spain
3 ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
4 CeNTI - Centre for Nanotechnology and Smart Materials, Rua Fernando Mesquita 2785, 4760-034 Vila Nova de Famalicão, Portugal
5 Center/Department of Physics, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
Nanoscale Research Letters 2011, 6:257 doi:10.1186/1556-276X-6-257Published: 25 March 2011
Nanocomposites of the self-forming core-shell Co-MgO nanoparticles, which were of approximately 100 nm in diameter, and poly(vinylidene fluoride) (PVDF) polymer have been prepared. When the polymer is crystallized in the α-phase, the introduction of the nanoparticles leads to nucleation of the γ-phase of PVDF, increasing also the melting temperature of the polymer. With the introduction of the Co-MgO particles, the dielectric constant of the material slightly increases and the storage modulus decreases with respect to the values obtained for the pure polymer.