Work

Synergistic Processes for Microstructure Engineering and Enhanced Dielectric Functionality in PVDF‐Based Systems

Year: 2025

Type: article

Abstract: Vinylidene Fluoride (VDF)-based polymers are renowned for their remarkable electroactive properties, encompassing the piezoelectric, pyroelectric, and ferroelectric effects. These properties make them highly sought-after in a wide range of applications, such as sensors and energy storage. The modulation of their dielectric characteristics is intricately linked to the crystalline polymorphism, which is contingent upon specific processing conditions. Herein, we evaluate the potential for enhancing these dielectric functionalities through modifications of the casting conditions (i.e., solvent and evaporation rate). Our findings demonstrate that superior structural characteristics and enhanced dielectric properties are achieved when casting from highly polar solvents followed by a vacuum annealing treatment. This simple and efficient method eliminates the need for extensive and complex processing methods and holds promise for streamlining industrial integration on a larger scale by reducing energy costs related to common integration processes.

Source: Macromolecular Rapid Communications

DOI: 10.1002/marc.202500670

Authors: Joulia Housseini, Florian Le Goupil, Kaili Xie, Georges Hadziioannou, Guillaume Fleury

Institutions: Centre National de la Recherche Scientifique, Laboratoire de Chimie des Polymères Organiques, Institut Polytechnique de Bordeaux

Language: English

Topic: Dielectric materials and actuators

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,550

Funders: Equipex, Agence Nationale de la Recherche