Temperature Dependence of the Number of Defect-Structures in Poly(vinylidene fluoride).

ABSTRACT: Poly(vinylidene fluoride) (PVDF) is predominantly characterized by alternating CH₂ and CF₂ units in a polymer backbone, originating from the head-to-tail addition of monomers or regular propagation. Due, to a small extent, to inverse monomer addition, so-called defect structures occur which influence the macroscopic properties of PVDF significantly. The amount of defect structures in the material is determined by the polymerization conditions. Here, the temperature dependence of the fraction of defect structures in PVDF obtained from polymerizations between 45 and 90 °C is reported. We utilized ¹⁹F-NMR spectroscopy to determine the fraction of defect structures as a function of temperature. To derive kinetic data, the polymerization of VDF is considered a q

SUBMITTER: Schwaderer J 

PROVIDER: S-EPMC11013231 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature