Poly(vinylidene fluoride-trifluoroethylene) (72/28) interconnected porous membr...

• Autor(es): Ferreira, Armando José Barros ; Silva, Jaime ; Sencadas, V. ; Gómez Ribelles, J. L. ; Lanceros-Méndez, S.
• Data: 2011
• Identificador Persistente: http://hdl.handle.net/1822/16313
• Origem: RepositóriUM - Universidade do Minho
• Assunto(s): Biomaterial; Polymer; Ferroelectric
• Tipo de Documento: Documento de conferência
• Idioma: Inglês

Descrição

Electroactive macroporous poly[(vinylidene fluoride)-co-trifluoroethylene] mambranes membranes have been processed by solvent evaporation at room temperature with different polymer/solvent concentrations. The pore architecture consists of on an interconnected spherical pores and this morphology is independent of the membrane thickness. The porosity of the produced membranes increases from 57% for the higher polymer concentration in the polymer/solvent solution (15/85), up to 83% for the lowest polymer amount in the polymer/solvent solution. Far infrared and differential scanning calorimetry measurements reveal that the polymer crystallizes in the ferroelectric phase and the polymer/solvent ratio does n’t not changes the Curie transition and the melting temperature of the polymer.