The problem has been solved by the use of polymer electrolyte having {HEAD ~ a ketonic carbonyl group} wherein {TAIL ~ the weight ratio} of the ketonic carbonyl group is in the range of 15 to 50 wt % based on the weight of the polymer material 
wherein
The problem has been solved by the use of polymer electrolyte having { HEAD ~ a ketonic carbonyl group } wherein { TAIL ~ the weight ratio } of the ketonic carbonyl group is in the range of 15 to 50 wt % based on the weight of the polymer material
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH