The role of crystallinity on the crazing micromechanism in poly(L-lactic acid) thin film

Y. Y. Lin, C. Y. Kuo, M. H. Liu, Arnold C M Yang, S. Y. Lee

研究成果: 書貢獻/報告類型會議貢獻

摘要

Poly(l-lactic acid)(PLLA) is a kind of semi-crystalline polymers that could be hydrolyzed through hydrolytic scission of the ester groups. Because of its biocompatibility and biodegradability, it is used widely in medical applications, which degradation and change in mechanical properties during hydrolyzing were the key factors. A.C. Renouf-Glauser et al. had investigated the effect of crystallinity on the deformation mechanism of bulk PLLA, but few studies focused on the mechanism of thin films. In the study we aimed to comprehend how various crystallinities affected the mechanical properties of PLLA and the effect of hydrolysis on PLLA. "String-of-pearls" structures revealed in the pristine and high-crystallinity PLLA, proving external tensile stress would lead to the disentanglement of lamellae. By using a simple calculation we found the diameter of lamellae would domain crazes propagation. In hydrolyzed test we found that the micromechanism of PLLA would be affected.
原文英語
主出版物標題2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
發行者IEEE Computer Society
頁面901-904
頁數4
ISBN(列印)9781424417483
DOIs
出版狀態已發佈 - 2008
事件2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008 - Shanghai, 中国
持續時間: 五月 16 2008五月 18 2008

其他

其他2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
國家中国
城市Shanghai
期間5/16/085/18/08

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering

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  • 引用此

    Lin, Y. Y., Kuo, C. Y., Liu, M. H., Yang, A. C. M., & Lee, S. Y. (2008). The role of crystallinity on the crazing micromechanism in poly(L-lactic acid) thin film. 於 2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008 (頁 901-904). [4535101] IEEE Computer Society. https://doi.org/10.1109/ICBBE.2008.221