Premium
Preparation and characterization of solid polymeric electrolyte of poly(vinyl) chloride‐low‐molecular weight LENR50 (70/30)‐LiClO 4
Author(s) -
Lee T. K.,
Ahmad A.,
Farina Y.,
Dahlan H. M.,
Rahman M. Y. A.
Publication year - 2012
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.36729
Subject(s) - electrolyte , lithium perchlorate , ionic conductivity , materials science , conductivity , lithium (medication) , polymer chemistry , ionic bonding , vinyl chloride , polymer , inorganic chemistry , chemical engineering , chemistry , ion , organic chemistry , copolymer , composite material , electrode , medicine , engineering , endocrinology
This work presents the preparation of a free standing electrolyte film containing poly(vinyl) chloride (PVC) and 50% liquid epoxidized natural rubber (LENR50) blends as a host for the electrolyte that was doped with lithium perchlorate (LiClO 4 ) as the dopant salt. The electrolyte was prepared via solution‐casting technique. From the impedance result, the highest ionic conductivity obtained was 9.6 × 10 −9 S cm −1 at the 30 wt % of LiClO 4 . This ionic conductivity result was supported by XRD analysis that showed the addition of 5–30 wt % of LiClO 4 salt to the PVC‐LENR50 was well dissociated in the electrolyte as no salt peaks were observed. This implies that the salt was fully complexed in the system. Thermal analysis revealed that T g increased with lithium salts concentration. This is due to the formation of transient crosslinkage bonds and increasing viscosity. The morphological studies revealed the good homogeneity of the PVC‐LENR50 (70/30) blend as no phase separation was observed. In addition, the formation of micropores with an addition of salts in the electrolyte improved the mobility properties of Li + ions in the electrolyte system. Hence, it improves the ionic conductivity. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012