Blending modification of PBS/PLA and its enzymatic degradation

This study used benzoyl peroxide (BPO) as a cross-linking agent to modify the blends of poly(butylene succinate) (PBS) and poly(lactic acid) (PLA). The PBS/PLA blends with a ratio of 20/80 and added 1% BPO was chosen because of its favorable properties. The compatibility of PBS/PLA was improved after adding BPO. The addition of BPO also improved the crystallization and promoted the complete decomposition of PBS/PLA, respectively. The blends with BPO was degraded by proteinase K. The degradation rate of the blends reached 67% after 96 h degradation. The PLA was not degraded completely because of the crosslink between PBS and PLA.