Dielectric relaxation in nanocomposites based on thermoplastic polyimide and carbon nanofibres
Keywords:dielectric relaxation, polymeric composites, polyimide
The article presents the study of R-SOD 3% nanocomposite’s molecular mobility based on thermoplastic PI (R-SOD) with 3% of carbon nanofibres by dielectric method. Dielectric spectrum shows two processes of dipole polarisation relaxation: in the glassy state (local β process) and in the highly elastic state (cooperative a process) related to molecular mobility of phenyl rings with polar —О— groups in diamine and dianhydride parts of a macromolecule and to segmented motion, respectively.
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