Relationship between UV Transmittance and Poly (vinylidene fluoride) Crystal Structures of Poly (vinylidene fluoride)/Poly (methyl methacrylate) Blends after Annealing.

Polymorphism of poly(vinylidene fluoride) induced by poling and annealing

2014 In stretched poly(vinylidene fluoride) films, the transition from unpolar 03B1-form to a polar form (03B1p) is produced by pohng at 80 °C by an electric field of 1 MV/cm. This oriented form has the same lattice constants as 03B1-form but is associated with extra diffuse reflections. This form and the diffuse reflections disappear by annealing above 170 °C and give an oriented and more stab...

Quantum Modelling of Poly(vinylidene Fluoride)

Multiferroic tunnel junctions with poly(vinylidene fluoride)

Isothermal Melt Crystallization Kinetic Behavior of Poly (vinylidene fluoride)

Isothermal melt crystallization kinetics of PVDF was investigated by differential scanning calorimetry. Thin PVDF film has been fabricated by the solvent casting technique using dimethylformamide (DMF). Then, the samples were melted and subsequently crystallized in the range of the crystallization temperature (Tc) between 138 and 145 °C. The crystallization kinetics was derived from Avrami equa...

Density Functional Theory calculations of the ferroelectric poly(vinylidene fluoride- chlorotrifluoroethylene) copolymer, compared to those of poly(vinylidene fluoride)

The quantum mechanics calculations of the energetics and structures corresponding to the different representatives structural conformations of poly(vinylidene fluoridetrifluoroethylene) and poly(vinylidene fluoridechlorotrifluoroethylene) copolymers show that the all-trans, Tp conformation, is energetically stabilized even with a chlorine substituent. The changes in the molecular arrangement as...