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    Synthesis and selective enzymatic degradation of polylactide/poly(butylene succinate) mixtures

    Year: 2023

    Journal: Molecular Crystals and Liquid Crystals, Volume 758, 13/06/2023

    Authors: Im, Donghyeok; Gavande, Vishal; Park, Eunji; Kim, Dongho; Lee, Won-Ki

    Keywords: enzymatic degradation; Blend compatibility; poly(butylene succinate); polylactide

    This paper provides the enzymatic degradation behavior of the polylactide (PLA)/poly(butylene succinate) (PBS) blend systems by using their respective enzymes, proteinase K and lipase. In a previous report, l-PLA/PBS blend monolayers with ≥ 50 mol% l-PLA showed good compatibility and a slow hydrolytic rate. To support this study, the degradation behavior of the PLA/PBS blend systems was confirmed with Langmuir technique and AFM. The blend system with poor compatibility showed rapid degradability. However, as the amount of PLA exceeded 50 mol%, the degradation was insignificant because partial compatibility between the two polymers lowered the degradation rate of PBS.
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