Non naturally occurring amino acid analogs that can incorporated into {HEAD ~ the subject copolymers} include residues having alkyl, alkenyl, {TAIL ~ cycloalkyl}, heteroalkyl and aryl sidechains 
Non naturally occurring amino acid analogs that can incorporated into { HEAD ~ the subject copolymers } include residues having alkyl , alkenyl , { TAIL ~ cycloalkyl } , heteroalkyl and aryl sidechains
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH