Title :
Radiation — Induced graft copolymerization base polymer electrolytes
Author :
Jaafar, N.K. ; Lepit, A. ; Aini, N.A. ; Ali, A. Malik Mohd ; Saat, A. ; Yahya, M.Z.A.
Author_Institution :
Fac. of Appl. Sci., Univ. Teknol. MARA, Shah Alam, Malaysia
Abstract :
Polymer electrolytes comprising of a grafted chitosan with poly(methylmethacrylate) (PMMA) were prepared by gamma irradiation induced graft polymerization technique and then subsequently doped with different concentration of lithium triflate (LiTf) salt. The structure and complexation of the electrolytes were studied by X-ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy. The ionic conductivities of the electrolytes were measured in the temperature range of 303-373 K. The maximum conductivity of 1.63 × 10-4 Scm-1 is obtained for the polymer with 50 wt% LiTf. The temperature-dependence conductivity data obeys Arrhenius relationship. Dielectric behavior was analyzed using complex permittivity (E) and complex electrical modulus (M´) for the different concentration of LiTf salt.
Keywords :
Fourier transform spectra; X-ray diffraction; doping; infrared spectra; ionic conductivity; materials preparation; permittivity; polymer electrolytes; polymerisation; radiation effects; Arrhenius relationship; Fourier transform infrared spectra; X-ray Diffraction; complex electrical modulus; complex permittivity; dielectric behavior; doped; gamma irradiation; graft polymerization technique; grafted chitosan; ionic conductivity; lithium triflate salt; poly(methylmethacrylate); polymer electrolytes; temperature 303 K to 373 K; Barium; Business; Channel hot electron injection; DH-HEMTs; Hafnium; Helium; Hidden Markov models; Chitosan-g-PMMA; Dielectric; Gamma radiation; Grafting; Ionic conductivity;
Conference_Titel :
Business, Engineering and Industrial Applications (ISBEIA), 2012 IEEE Symposium on
Conference_Location :
Bandung
Print_ISBN :
978-1-4577-1632-4
DOI :
10.1109/ISBEIA.2012.6422950
