In {HEAD ~ preferred embodiments} of {TAIL ~ the present invention}, Z is one or more substituted amines represented by NR3, NHR2, or NH2 R where each R is independently a C1 C36 aliphatic, C3 C8 cycloaliphatic, a C7 C24 aralkyl, or C6 C10 aryl group 
of
In { HEAD ~ preferred embodiments } of { TAIL ~ the present invention } , Z is one or more substituted amines represented by NR3 , NHR2 , or NH2 R where each R is independently a C1 C36 aliphatic , C3 C8 cycloaliphatic , a C7 C24 aralkyl , or C6 C10 aryl group
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