Journal of Macromolecular Science Part B · 1970 · 42 citations · 25 references
Natural SciencesChemistryMaterials SciencePhysical ChemistryPolymer ChemistryPolymer MaterialsPolymer CrystallizationPolymer Phase BehaviorPolymer Physical ChemistryPolymer PhysicsPolymer StructurePolymer ThermodynamicsCopolymers Crystallization BehaviorCopolymers Phase BehaviorCrystallizationHydrostatic PressureMeltingMelting Of Polymer MaterialsPolymer Melting BehaviorPolymer Melts
Abstract The high-pressure melting behavior of samples of vinylidene fluoride copolymerized with vinyl fluoride, trifluoroethylene, or tetrafluoroethylene indicate that the copolymers have a lower entropy of melting than the poly(vinylidene fluoride) homopolymers in the same phase. As the comonomer size increases, the entropy of melting decreases. High-pressure crystallization of copolymers of 91-9 mole% vinylidene fluoride-trifluoroethylene and 93-7 mole% vinylidene fluoride-tetrafluoroethylene results in a high-melting form of phase I (planar zig-zag).
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