Synthesis, Characterization, and Hydrolytic Degradation of Polylactide/Poly(ethylene glycol)/Nano-silica Composite Films

被引：23
|
作者：
Liu, Yangshuo [1 ]
Chen, Wenbao [1 ]
Kim, Hyung-Il [1 ]
机构：
[1] Chungnam Natl Univ, Dept Ind Chem, Taejon 305764, South Korea
来源：
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY | 2012年 / 49卷 / 04期
关键词：
Polylactide; nano-silica; composites; mechanical properties; hydrolytic degradation; LACTIC-ACID; CRYSTALLIZATION BEHAVIOR; MECHANICAL-PROPERTIES; POLY(LACTIC ACID); POLYLACTIC ACID; NANOCOMPOSITES; SILICA; POLY(L-LACTIDE); PERFORMANCE; GLYCOL);
D O I：
10.1080/10601325.2012.662077
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(lactic acid) (PLA)/PEG/nano-silica composite degradable films have been prepared by solvent casting method. IR measurements showed that vibration of C-O-C group was confined by silica network. SEM results showed that nano-silica particles were dispersed uniformly in the PLA/PEG matrix. TGA results indicated that the thermal decomposition temperature rose with the increase of nano-silica content. The tensile strength of composite film increased by the addition of nano-silica particles into PLA/PEG matrix. The degradation rate of PLA/PEG/nano-silica composites increased with the acidic medium of degradation. On the other hand, the slower degradation was obtained in the neutral buffer solution. PLA/PEG/nano-silica composites were found to exhibit almost similar degradation behavior as that of PLA/PEG films.
引用
收藏
页码：348 / 354
页数：7
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