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Hydrolysis and thermal degradation of poly( L ‐lactide) in the presence of talc and modified talc
Author(s) -
Jo MiYeong,
Ryu Yeon Jong,
Ko Jun Hee,
Yoon JinSan
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38753
Subject(s) - talc , materials science , thermal stability , composite material , hydrolysis , gravimetric analysis , ultimate tensile strength , crystallization , silane , thermogravimetric analysis , polymer chemistry , degradation (telecommunications) , chemical engineering , chemistry , organic chemistry , telecommunications , computer science , engineering
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. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013