Spinning of a random copolypeptide composed of gamma-benzyl-L-glutamate and L-alanine

The solution spinning of a random copolypeptide of gamma-benzyl-L-glutamate polymerized with L-alanine at a mole ratio of 1 to 4 has been examined. Good fibers were obtained by using dichloroacetic acid and water as solvent and coagulation reagent respectively. The mechanical properties of the fibers are comparable with those of natural fibers.