A large number of polymers are quite resistant to the environment degradation process and are thus, accumulation of polymeric solid waste material. Certain new biodegrdable synthetic polyermer have been designed and development. Among these the most important ar aliphatic polyeters and polyamides.
PHBV is a copolymer of:
A. glycine and 6-aminohexanoic acid
B. 3-hydroxy butanoic acid and 3-hydroxy pentanoic acid
C. glycollic acid and lactic acid
D. buta-1-3, diene and acrylonitrile
