In preferred embodiments of {HEAD ~ the present invention}, Z is one or more substituted amines represented by {TAIL ~ 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 
In preferred embodiments of { HEAD ~ the present invention } , Z is one or more substituted amines represented by { TAIL ~ 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
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH