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