An innovative chemical route involving vinyledene difluoride (VDF)/ chlorotrifluoroethylene (CTFE) copolymerization and partial hydrogenation of CTFE units to prepare VDF/trifluoroethylene (TrFE)/CTFE terpolymers was investigated. The new chemical route involved two reaction steps that include copolymerization of VDF/CTFE and partial hydrogenation of CTFE units. It was observed that the terpolymers exhibit common ferroelectric relaxor behaviors with a broad dielectric peak that shifts toward higher temperatures as the frequency increases. The microstructure of this terpolymer with a head-to-head VDF-TrFE sequence was found to be very different from that of a head-to-tail VDF-TrFE sequence in the corresponding terpolymer prepared by direct terpolymerization. It was found that the dielectric constant and Curie temperature vs terpolymer composition were very different.
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry