Third generation of pha -[CH--CH2C--OaCH-CH2--C--OJh CH CHa Copolymers of 3-hydroxybutyrate and 3-hydroxyhexanoate Copolymers of 3-hydroxybutyrate and 3-hydroxyoctanoate Have been synthesized by doi, steinbuchel and P&gThird Generation of PHA —[CH—CH2—C—O]a——[CH—CH2—C—O]b— O O CH3 C3H5 Copolymers of 3-hydroxybutyrate and 3-hydroxyhexanoate, Copolymers of 3-hydroxybutyrate and 3-hydroxyoctanoate Have been synthesized by Doi, Steinbuchel and P&G