Magnetic recording medium having a lubricant layer comprising ionically interbonded {HEAD ~ fluoropolyethers} with {TAIL ~ acidic and basic terminal groups} 
with
Magnetic recording medium having a lubricant layer comprising ionically interbonded { HEAD ~ fluoropolyethers } with { TAIL ~ acidic and basic terminal groups }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL