title: [TR-FTIRS study of crystal phase transformation in polyvinylidene fluoride].
abstract: The study of polyvinylidene fluoride (PVDF) by time-resolved Fourier transform infrared spectroscopy (TR-FTIRS) was reported. The instantaneous change and process of both alpha-form and beta-form during transformation were studied under the pulse electric field excitation. Transformation of alpha-form to beta-form was indicated by the increasing of the peak at 508cm(-1), the decreasing of the peak at 528cm(-1) and a shift of those peaks. The transient change time was about 5ms. The decreasing of the peak at 528cm(-1) was nonlinear. A hysteresis-like loop was observed, which was related with the biaxially orientated property of PVDF and was in good agreement with its polarizated hysteresis loop.
authors.affiliation: Department of Chemistry, Tsinghua University, 100084 Beijing.
authors.forename: X
authors.initials: X
authors.lastname: Hu
authors.forename: Y
authors.initials: Y
authors.lastname: Li
authors.forename: W
authors.initials: W
authors.lastname: Lu
authors.forename: S
authors.initials: S
authors.lastname: Sun