Copolypeptides were synthesized by the multicomponent copolymerization
of N-carboxy-alpha-amino acid anhydrides of Glu(OBzl), Phe, Leu, Cys(
Bzl), Lys(Z), Orn(Z), Ala, or Gly. The copolymerization was proceeded
by ideal random copolymerization. Multicomponent polypeptides obtained
here were high-molecular-weight, mostly soluble in aprotic solvent, a
nd formed films having high tensile strength and transparency.