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