4.6 Article

Hydrolysis and thermal degradation of poly(L-lactide) in the presence of talc and modified talc

Journal

JOURNAL OF APPLIED POLYMER SCIENCE
Volume 129, Issue 3, Pages 1019-1025

Publisher

WILEY
DOI: 10.1002/app.38753

Keywords

biomaterials; composites; thermal properties

Funding

  1. National Research Foundation of Korea (NRF) [2010-0010822]
  2. National Research Foundation of Korea [2010-0010822] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Talc and talc modified with trimethoxy(octadecyl)silane (O-talc) were melt compounded with poly (L-lactide) (PLA). The crystallization behavior, tensile properties, and impact strength of the PLA composites were examined before and after the incorporation of talc and O-talc. The molecular weight of PLA in the PLA composites was measured as a function of the hydrolysis time and temperature. The effect of talc and O-talc on the thermal stability of PLA was examined and quantified by the activation energy of thermal degradation and the integral procedural decomposition temperature value determined from the corresponding thermo-gravimetric analysis weight loss profiles. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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