Title :
Thermal pulse study of the electric polarization in P(VDCN-VAc)
Author :
Giacometti, José A. ; DeReggi, Aimé S. ; Davis, G. Thomas ; Dickens, Brian
Author_Institution :
Nat. Inst. of Standards & Technol., Gaithersburg, MD, USA
Abstract :
The thermal pulse technique was used to measure the electric polarization and its distribution in the alternating copolymer of vinylidene cyanide and vinyl acetate P (VDCN-VAc), with poling voltage and poling temperature as variables. The thermal stability of the polarization was evaluated at several ageing temperatures up to the glass transition temperature. The polarization was found to be proportional to the poling field up to 50 MV/m and very stable for ageing temperatures up to 150°C
Keywords :
ageing; dielectric polarisation; glass transition; polymer blends; 150 degC; P(VDCN-VAc); ageing temperatures; copolymer; electric polarization; glass transition temperature; poling temperature; poling voltage; thermal pulse technique; thermal stability; vinyl acetate; vinylidene cyanide; Aging; Electric variables measurement; Nonlinear optics; Optical polarization; Piezoelectric polarization; Polymers; Pulse measurements; Temperature distribution; Thermal stability; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378960
