In this paper, thermal degradation and degradation kinetic of a poly(vinylidene fluoride-chlorotrifluoroethylene) (poly(VDF-CFTE)) copolymers are investigated by thermogravimetry (TG) under non-isothermal conditions. Thermal degradation of poly(VDF-CFTE) copolymers namely FKM1, FKM2, FKM3 and FMK4 samples is carried out at different heating rate under nitrogen atmosphere. The activation energies of poly(VDF-CFTE) samples are calculated from Kissinger-Akahira-Sunose (KAS) and Friedman kinetic methods. To investigate the kinetic model of thermal degradation for poly(VDF-CTFE) copolymers, Criado method is employed. The results showed that the probable model for the degradation of poly(VDF-CTFE) copolymers agreed with a power law and diffusion (D-1) model. The activation energies of FKM1, FKM2, FKM3 and FKM4 samples are found to be 196, 197, 198 and 207 kJ mol(-1), respectively. (C) 2012 Elsevier B.V. All rights reserved.