The method 1, wherein {HEAD ~ linear or branched substituted or unsubstituted alkyl} is {TAIL ~ C1 C6 alkyl} 
is
The method 1 , wherein { HEAD ~ linear or branched substituted or unsubstituted alkyl } is { TAIL ~ C1 C6 alkyl }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL