DBAR investigation on films of polypyrrole incorporated polyvinylalcohol doped with ferric chloride

11th International Workshop on Positron and Positronium Chemistry

物理学;化学

Lobo, Blaise^1 ; Baraker, B.M.^1 ; Hammannavar, P.B.^1 ; Bhajantri, R.F.^2 ; Ranganath, M.R.^1 ; Hurkadli, M.^1 ; Ravindrachary, V.^3

Department of Physics, Kamatak Science College, Kamatak University, Dharwad, Karnataka

580001, India^1

Department of Physics, Karnatak University, Dharwad, Karnataka

580003, India^2

Department of Physics, Mangalore University, Mangalore, Karnataka

574199, India^3

关键词: Degree of crystallinity;    Doppler broadening of annihilation radiations;    Electrical measurement;    Ferric chloride;    Poly (vinyl alcohol) (PVA);    Polypyrrole (PPy);    Solution casting;    UV-visible spectrometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/618/1/012026/pdf
DOI  :  10.1088/1742-6596/618/1/012026

来源: IOP

【 摘 要 】

Flexible films of pyrrole(Py) sorbed, ferric chloride (FeCl3) doped polyvinylalcohol(PVA) were prepared by solution casting. The films were characterized by XRD, UV-Visible spectrometry, Thermal Analysis (DSC, DTA/TGA), FTIR and electrical measurements. In this paper, the results of Doppler Broadening of Annihilation Radiation (DBAR) spectra in the doping range, from 4 wt% up to 18 wt%, are discussed. The XRD and DSC scans complement the DBAR results. The computed S-parameter and W-parameter reflect changes in the degree of crystallinity and the average crystallite size, respectively, of polypyrrole(PPy) incorporated PVA samples doped with ferric chloride.