Sencadas, V.Lanceros-Mendéz, S.Gregorio Filho, R.Chinaglia, D. L. [UNESP]Pouzada, A. S.2014-05-272014-05-272005-12-01Proceedings - International Symposium on Electrets, v. 2005, p. 161-164.http://hdl.handle.net/11449/68529The α → β phase transformation of PVDF through the stretching process at different temperatures was investigated. The optimum stretching conditions were studied and characterised by infrared spectroscopy and differential scanning calorimetry. The maximum β-phase content was achieved at 80°C and a stretch ratio of 5. These samples were poled at several electric fields by the corona charge method. The effect of the electric field on the phase transformation was studied by infrared spectroscopy.161-164engDifferential scanning calorimetryElectric coronaElectric field effectsInfrared spectroscopyPhase transitionsCorona charge methodsPhase contentStretch ratioStretching processPolymersTrabalho apresentado em evento10.1109/ISE.2005.1612345Acesso aberto2-s2.0-338477534188870539749821067