Enhancing the Hydrolytic Stability of Poly(lactic acid) Using Novel Stabilizer Combinations.

ABSTRACT: Commercially available poly(lactic acid) exhibits poor hydrolytic stability, which makes it impossible for use in durable applications. Therefore, a novel hydrolysis inhibitor based on an aziridine derivative as well as a novel stabilizer composition, containing an aziridine derivative and an acid scavenger, were investigated to improve the hydrolytic stability. To evaluate the stabilizing effect, the melt volume rate (MVR) and molecular weight were monitored during an accelerated hydrolytic aging in water at elevated temperatures. Temperatures were selected according to the glass transition temperature (~60 °C) of PLA. It was shown that the novel hydrolysis inhibitor as well as the novel stabilizer composition exhibited excellent performance during hydrolytic aging, exceeding commercially

SUBMITTER: Hallstein J 

PROVIDER: S-EPMC10892727 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature