Effect of hydroloysis on fracture behavior of poly(L-lactide)

Mitsugu Todo, Nobuyuki Shinohara, Kazuo Arakawa, Hideto Tsuji

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    Fracture toughness values of poly(L-lactide) (PLLA) samples hydrolyzed in phosphate-buffered solution for 1 to 24 weeks were measured, and effect of hydrolysis on the fracture toughness was investigated. For both amorphous and crystallized samples, fracture toughness decreased due to hydrolysis. The degradation of fracture toughness was much faster in the crystallized sample than in the amorphous sample. Fractographic studies exhibited that the toughness degradation was mainly caused by the deterioration due to hydrolysis such as crack formation at spherulite interfaces originated from the scission of molecular chains.

    Original languageEnglish
    Pages (from-to)644-651
    Number of pages8
    JournalKOBUNSHI RONBUNSHU
    Volume60
    Issue number11
    DOIs
    Publication statusPublished - Nov 2003

    All Science Journal Classification (ASJC) codes

    • Chemical Engineering (miscellaneous)
    • Materials Science (miscellaneous)
    • General Environmental Science
    • Polymers and Plastics

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