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Polyvinylidene fluoride (PVDF) is a semi-crystalline polymer synthesized by the polymerization of H2C=CF2 monomers. The spatial arrangement of CH2 and CF2 groups along the polymer chain determines the unique polarity, unusually high dielectric constant, polymorphism and high piezoelectric and pyroelectric activity of the polymer. As the most popular polymer in the fluoropolymer family, PVDF has been used in a wide range of high-tech applications such as chemical processing equipment, electrical and electronic, and energy-related applications.