- Synthesis and characterization of novel solid polymer electrolytes based on poly(7-oxanorbornenes) with pendent oligoethyleneoxy-functionalized cyclotriphosphazenes
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The development of novel cyclotriphosphazene and oligoethyleneoxy-functionalized poly-(7-oxanorbornenes) for possible use as solid polymer electrolytes in the electrolyte layer of rechargeable lithium batteries is described. The length of the oligoethylen
- Allcock, Harry R.,Bender, Jared D.,Morford, Robert V.,Berda, Erik B.
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- Synthesis of new polyelectrolytes via backbone quaternization of poly(aryloxy- and alkoxyphosphazenes) and their small molecule counterparts
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Novel polyelectrolytes were synthesized by quaternization of the backbone of poly(alkoxy- and aryloxyphosphazenes) with strong alkylation reagents. As models for the synthesis of these polymers, similar quaternization reactions were also carried out on small-molecule alkoxy and aryloxy cyclotriphosphazenes. The quaternized small molecules and high polymers were characterized by 1H NMR, 31P NMR, DSC, TGA, and AC impedance studies. The quaternized poly(alkoxyphosphazenes) showed ionic conductivities of 2.58 × 10-4 S?cm-1 at 25 °C and 2.09 × 10 -3 S?cm-1 at 80 °C, which are among the highest values for known solvent-free ionically conducting polymers.
- Chen, Chen,Hess, Andrew R.,Jones, Adam R.,Liu, Xiao,Barber, Greg D.,Mallouk, Thomas E.,Allcock, Harry R.
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experimental part
p. 1182 - 1189
(2012/06/30)
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