Effects of an ionic liquid and processing conditions on the β-polymorph crystal formation in poly(vinylidene fluoride)

• Published in: CrystEngComm Vol. 21; no. 36; pp. 5418 - 5428
• Main Authors: Pickford, Tom, Gu, Xu, Heeley, Ellen L, Wan, Chaoying
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 16.09.2019
• Subjects: Additives; Crystal structure; Crystallinity; Dielectric properties; Electrospinning; Fluorides; Ionic liquids; Ions; Morphology; Nanofibers; Permittivity; Piezoelectricity; Polyvinylidene fluorides; Pressure casting; Vinylidene fluoride; X-ray scattering

The piezoelectric properties of poly(vinylidene fluoride) (PVDF) are determined by the prevalence and orientation of its polar β-crystal phase, which can be tuned by processing conditions, additives, mechanical stretching or post-treatment. Here, the effects of three types of processing conditions o...