In a polyamide, a repeating unit is an organic structure having a dicarboxylic acid and a diamine residue, lactam, or aminoacid residues, bonded through a amide group.It will also be understood by persons having ordinary skill in the art that the residues associated within the various polyesters, polyamide, polycarbonates, and polyarylates of the invention can be derived from the parent monomer co