A New Look at the Structure and Thermal Behavior of Polyvinylidene Fluoride-Camphor Mixtures.

ABSTRACT: An experimental quasi-equilibrium phase diagram of the polyvinylidene fluoride (PVDF)-camphor mixture is constructed using an original optical method. For the first time, it contains a boundary curve that describes the dependence of camphor solubility in the amorphous regions of PVDF on temperature. It is argued that this diagram cannot be considered a full analogue of the eutectic phase diagrams of two low-molar-mass crystalline substances. The phase diagram is used to interpret the polarized light hot-stage microscopy data on cooling the above mixtures from a homogeneous state to room temperature and scanning electron microscopy data on the morphology of capillary-porous bodies formed upon camphor removal. Based on our calorimetry and X-ray studies, we put in doubt the possibility of inc

SUBMITTER: Pochivalov KV 

PROVIDER: S-EPMC9735715 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature