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