1. New Approaches to Self-assembled Electroactive Polymers Exhibiting High Electromechanical Responses
Qing Wang, Department of Materials Science and Engineering,
The Pennsylvania State University, University Park, PA 16802
In poly(vinylidene fluoride)-based ferroelectric polymers,
the dimensional change between the molecular conformations
in the ferroelectric phase (-phase) and the paraelectric
phase (-phase) can induce a large strain (> 10%), which can
be controlled by external electric fields.
 - phase
To improve electromechanical responses in PVDFs, a terpolymer approach has been investigated. We have developed a modular approach to the P(VDF-CTFE-TrFE)s with precisely controlled compositions and tunable physical properties.
 - phase
Molecular conformation
as a function of
chemical compositions
Composition dependence of the dielectric constants
for the terpolymer P(VDF-CTFE-TrFE)s.