{HEAD ~ each} of Y is independently chosen from {TAIL ~ the group} of —OR, —NR, —NR2, —CR, —C—NR2, —C—OR, —CR, —C—NR2, —C—OR, and R, wherein each R is independently H, or a substituted or unsubstituted, branched, cyclic or straight alkyl, alkenyl or alkynyl group which possibly contains an aromatic, ester or ether moiety or one or more other heteroatoms and may have from 1 to 40 carbon atoms 
{ HEAD ~ each } of Y is independently chosen from { TAIL ~ the group } of — OR , — NR , — NR2 , — CR , — C — NR2 , — C — OR , — CR , — C — NR2 , — C — OR , and R , wherein each R is independently H , or a substituted or unsubstituted , branched , cyclic or straight alkyl , alkenyl or alkynyl group which possibly contains an aromatic , ester or ether moiety or one or more other heteroatoms and may have from 1 to 40 carbon atoms
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL 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 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 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