Effect of epoxidized sunflower oil on polylactic acid properties

Effect of epoxidized sunflower oil on polylactic acid properties Epoxidized sunflower oil (ESO) was utilized as a plasticizer for polylactic acid (PLA) using chloroform as a solvent by a solution casting process at various ratios of PLA to ESO. Fourier-transform infrared (FTIR) spectroscopy was used to identify the functional groups of PLA, ESO, and PLA/ESO blends. Thermal stability and mechanical and morphological properties of the blends were investigated by thermogravimetric analysis, tensile property measurements, and scanning electron microscopy technique, respectively. The FTIR spectra indicate that there are some molecular interactions by intermolecular hydrogen bonding between PLA and ESO. PLA/ESO blends show high thermal stability and significant improvement of mechanical properties compared with pure PLA. The highest elongation at break was obtained when the ratio of the PLA/ESO blend was 80/20. Morphological results of PLA/ESO blends show that ESO was well miscible with PLA. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Effect of epoxidized sunflower oil on polylactic acid properties

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Publisher
Springer Journals
Copyright
Copyright © 2012 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-012-0971-5
Publisher site
See Article on Publisher Site

Abstract

Epoxidized sunflower oil (ESO) was utilized as a plasticizer for polylactic acid (PLA) using chloroform as a solvent by a solution casting process at various ratios of PLA to ESO. Fourier-transform infrared (FTIR) spectroscopy was used to identify the functional groups of PLA, ESO, and PLA/ESO blends. Thermal stability and mechanical and morphological properties of the blends were investigated by thermogravimetric analysis, tensile property measurements, and scanning electron microscopy technique, respectively. The FTIR spectra indicate that there are some molecular interactions by intermolecular hydrogen bonding between PLA and ESO. PLA/ESO blends show high thermal stability and significant improvement of mechanical properties compared with pure PLA. The highest elongation at break was obtained when the ratio of the PLA/ESO blend was 80/20. Morphological results of PLA/ESO blends show that ESO was well miscible with PLA.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Dec 25, 2012

References

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