Structural and Property Changes During Hydrolytic Degradation

On the other hand, pores enhance the alkaline and enzymatic surface hydrolytic degradation of aliphatic polyesters because of the increased surface area per unit mass of porous materials compared to that of nonporous materials [307]. Similar to this, the pores formed by the removal of water-soluble polymers such as poly(p-vinyl phenol) from PLLA/ water-soluble polymer blends accelerate the alkaline hydrolytic degradation of PLLA as traced by weight loss [249]. 

4 STRUCTURAL AND PROPERTY CHANGES DURING HYDROLYTIC DEGRADATION 

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