Browsing by Author "Doulache, N."
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Item Contribution to the study of the enthalpy relaxation of polyesters by DSC experiments(Taylor & Francis, 2012) Khemici, Wafik Mohammed; Doulache, N.; Gourari, A.; Bendaoud, M.Item Contribution to the study of the enthalpy relaxation of polyesters by DSC experiments(Taylor & Francis, 2012) Khemici, Wafik Mohammed; Doulache, N.; Gourari, A.; Bendaoud, M.Item Crystallinity effect on the structural relaxation of polyethylene naphtalate (PEN) by TSDC and DSC experiments(IEEE, 2015) Abdi, C.; Khemici, Wafik Mohammed; Doulache, N.Item Dielectric characterization of polyvinyl chloride/polymethyl methacrylate (PVC/PMMA) blends by TSDC technique(Taylor and Francis Inc., 2018) Mzir, T.; Khemici, M.W.; Dahmane, M.; Mzir, M.; Doulache, N.The present work focuses on the study of polyvinylchloride/polymethyl methacrylate (PVC/PMMA) blends. Films with different weight ratios of PMMA were prepared. The ATR-FTIR spectroscopy was used to study their miscibility. The TSDC was applied to study dielectric properties. The TSDC spectra of miscible blends (≤60 wt% of PMMA) have a single peak whose position is intermediate between the one of the two pure polymers as well as the activation energy, the fragility index and the compensation temperature were deduced using the fractional polarization technique. The maximal dielectric losses, which increase with the increase of PMMA content, are in the vicinity of the glass temperature.Item Study of phase changes in aromatic polyesters induced by the effect of rubbery annealing(Taylor & Francis, 2012) Khemici, Wafik Mohammed; Doulache, N.; Rahmani, B.; Gourari, A.Item Study of quenched poly ethylene naphatalate (PEN) using the three-phase model by differential scanning calorimetry (DSC)(Taylor & Francis, 2010) Doulache, N.; Khemici, Wafik Mohammed; Gourari, A.; Bendaoud, M.Item Thermally stimulated currents depolarization study of gamma ray irradiated PMMA(Taylor & Francis, 2017) Derbil, S.; Khemici, Wafik Mohammed; Doulache, N.; Gourari, A.; Haine, N.