Poly oxymethylene-oligo(oxyethylene) for use in subambient temperature electrochromic devices


Colley, R. A., Budd, P. M., Owen, J. R. and Balderson, S. (2000) Poly oxymethylene-oligo(oxyethylene) for use in subambient temperature electrochromic devices. Polymer International, 49, (4), 371-376. (doi: 10.1002/(SICI)1097-0126(200004)49:4<371::AID-PI384>3.0.CO;2-7).

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Description/Abstract

Polymer electrolytes were prepared from oxymethylene-linked polyethylene glycol 200 with lithium perchlorate at O:Li mole ratios of 10, 25 and 70, and with zinc iodide at an O:Zn mole ratio of 70. At the higher salt concentrations (O:Li less than or equal to 25), the electrolytes were amorphous at temperatures down to -20 degrees C. Conductivity was measured over a range of temperatures (eg for O:Li = 25, sigma ranged from 4 x 10(-8) S cm(-1) at -10 degrees C to 2 x 10(-4) S cm(-1) at 70 degrees C). A prototype electrochromic device was constructed for which the progression of a colour front was temperature dependent. Such a device could be utilized as a time-temperature integrating sensor for indicating whether frozen goods have been stored correctly. (C) 2000 Society of Chemical Industry.

Item Type: Article
Related URLs:
Keywords: polymer electrolyte, electrochromic device, time-temperature integration, sensoroxymethylene-linked poly(oxyethylene), differential scanningcalorimetry, polymer electrolytes
Subjects: Q Science
Q Science > QD Chemistry
Divisions: University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 18936
Date Deposited: 19 Jan 2006
Last Modified: 27 Mar 2014 18:08
URI: http://eprints.soton.ac.uk/id/eprint/18936

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