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Effect of CsBr–MnCl 2 mixed fillers on the crystal structure and optical and electrical properties of poly(vinyl alcohol)
Author(s) -
Abdelaziz M.
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.21164
Subject(s) - vinyl alcohol , materials science , casting , fourier transform infrared spectroscopy , polymer , activation energy , polymer chemistry , electrical resistivity and conductivity , crystal structure , absorption (acoustics) , chemical engineering , analytical chemistry (journal) , composite material , chemistry , crystallography , organic chemistry , electrical engineering , engineering
Poly(vinyl alcohol) (PVA) films filled with ( x )CsBr(15 − x )MnCl 2 , where 0.0 ≤ x ≤ 15%, were prepared by a casting technique. The crystal structure properties of the prepared films were examined by XRD, DTA, and FTIR. A correlation between XRD, DTA, and FTIR of the filled polymer was discussed. Optical absorption measurements revealed two optical band gaps ( E g 1 and E g 2 ). The electrical properties were studied using dc electrical conductivity. The filling level (FL) dependency of E g 1 and E g 2 , thermal activation energy (Δ E ), and hopping distance ( R 0 ) are given to illustrate the behavior of the filled polymers. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 2178–2186, 2004