Abstract
Poly(vinylidene fluoride‐co-trifluoroethylene) (P(VDF-TrFE)) microspheres were obtained by a nanoprecipitation method based on the deposition of a polymeric solution over a non-solvent (NS) solution. The effect of several parameters on sphere formation was evaluated, including copolymer concentration, NS content (methanol/water ratio) and surfactant type. Morphological and physico-chemical characterizations were performed. Depending on processing conditions, spheres with diameters ranging from ~100 to 1100 nm with similar physico-chemical properties were obtained. Independently of the processing conditions, P(VDF-TrFE) microspheres crystallize in the electroactive β phase with an average crystallinity of 26%. Thus, samples show the required characteristics for biomedical applications.
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