Biodegradation mechanism of polycarbonates and polyethers

The biodegradabiUties of various copolyester-carbonates have been reported. Above all, copolycarbonates containing the lactide moiety have been extensively 

The in vivo degradation of polycarbonates and copolymers has been reported. The in vivo behavior of poly(l,3-lrimethylene carbonate) and the copolymers of 1,3-trimethylene carbonate with DL-lactide or e-caprolactone were reported by Pego et al. (2003a,b), Christenson et al (2004a,b) and Matheson et al (2002). 

12 Mechanism of symbiotic degradation of PEG (adapted from Kawai and Yamanaka, 1986). 

13 Predicted pathways of PEO scission by oxygen insertion or hydrogen abstraction (adapted from Kerem eta ., 1998). 

14 Proposed mechanisms of PPG degradation (adapted from Kawai, 1993). 

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