As used herein the term “aralkyl” refers to a group —RbRa, where {HEAD ~ Rb} is {TAIL ~ an alkylene} and Ra is aryl, as each herein is defined 
is
As used herein the term “ aralkyl ” refers to a group — RbRa , where { HEAD ~ Rb } is { TAIL ~ an alkylene } and Ra is aryl , as each herein is defined
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH