SYNTHESIS AND TRANSPORT-PROPERTIES OF MIXED MEEP-PEO-NASCN POLYMER ELECTROLYTES
DSpace at IIT Bombay
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Title |
SYNTHESIS AND TRANSPORT-PROPERTIES OF MIXED MEEP-PEO-NASCN POLYMER ELECTROLYTES
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Creator |
SUBRAMONY, JA
KULKARNI, AR |
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Subject |
solid electrolyte
polyphosphazenes |
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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.
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Publisher |
ELSEVIER SCIENCE SA LAUSANNE
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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 |
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Type |
Article
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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 |
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Language |
en
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