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SYNTHESIS AND TRANSPORT-PROPERTIES OF MIXED MEEP-PEO-NASCN POLYMER ELECTROLYTES

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Title SYNTHESIS AND TRANSPORT-PROPERTIES OF MIXED MEEP-PEO-NASCN POLYMER ELECTROLYTES
 
Creator SUBRAMONY, JA
KULKARNI, AR
 
Subject solid electrolyte
polyphosphazenes
 
Description Poly[bis(methyoxy-ethoxy-ethoxy)phosphazene] (MEEP) has been prepared from hexachlorocyclotriphosphazene by polymerizing the latter and then replacing the Cl groups by methoxy ethoxy-ethoxy groups to obtain a completely amorphous polymer. Mixed electrolyte of MEEP, PEO and NaSCN have been prepared by varying NaSCN concentration in the electrolyte while maintaining the ratio of MEEP and PEO constant at 55:45. The mixed electrolytes showed the highest electrical conductivity of 5 x 10(-5) S cm(-1) at room temperature which is two orders of magnitude higher than PEG-based systems. Mixed electrolytes have been characterized by infrared and differential scanning calorimetry. The transport numbers of Na+ and SCN- are 0.92 and 0.08 respectively. Addition of PEG, to amorphous MEEP introduces crystalline PEO-NaSCN phases into the mixed electrolyte system.
 
Publisher ELSEVIER SCIENCE SA LAUSANNE
 
Date 2011-07-29T16:16:55Z
2011-12-26T12:48:47Z
2011-12-27T05:53:07Z
2011-07-29T16:16:55Z
2011-12-26T12:48:47Z
2011-12-27T05:53:07Z
1994
 
Type Article
 
Identifier MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 22(40604), 206-210
0921-5107
http://dx.doi.org/10.1016/0921-5107(94)90245-3
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7759
http://hdl.handle.net/10054/7759
 
Language en