CONDUCTIVITIES, THERMAL-PROPERTIES AND RAMAN STUDIES OF POLY(TETRAMETHYLENE GLYCOL) BASED POLYMER ELECTROLYTES

Authors
FURTADO CA SILVA GG PIMENTA MA MACHADO JC
Citation
Ca. Furtado et al., CONDUCTIVITIES, THERMAL-PROPERTIES AND RAMAN STUDIES OF POLY(TETRAMETHYLENE GLYCOL) BASED POLYMER ELECTROLYTES, Electrochimica acta, 43(10-11), 1998, pp. 1477-1480
Citations number
12
Categorie Soggetti
Electrochemistry
Journal title
Electrochimica acta → ACNP
ISSN journal
00134686
Volume
43
Issue
10-11
Year of publication
1998
Pages
1477 - 1480
Database
ISI
SICI code
0013-4686(1998)43:10-11<1477:CTARSO>2.0.ZU;2-R
Abstract
Polymer electrolytes prepared with lithium perchlorate and low molecul ar weight poly(tetramethylene glycol) (PTMG) homopolymer and PTMG/poly (ethylene glycol) (PEG) copolymer were investigated. Complex impedance measurements, thermogravimetric analysis, differential scanning calor imetry and Raman spectroscopy were used to characterize the systems. I onic conductivity results at room temperature for the homopolymer are lower than those reported for the well-studied PEG, while those for th e copolymer are similar. The most concentrated samples showed the pres ence of crystalline polymer-salt complexes for both the polymer hosts. An increase of the ionic association with increase of salt concentrat ion is observed, (C) 1998 Published by Elsevier Science Ltd. All right s reserved.