Characterization of poly (L-Lactic acid) prepared by bulk polymerization process using titanium (IV) butoxide and stannous (II) compounds

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Published: Apr 19, 2017
Keywords:
Polycondensation, Poly (L-lactic acid), Biopolymer

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Phatidta Pleanprasert
Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
Paveena Khansawai
Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
Choosak Poonsawat
Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand

Abstract

Characterization of Poly (L-lactic acid) (PLLA) was carried out by L-lactic acid monomer using Titanium (IV) buoxide (TNBT) and Stannous (II) compound (SnCl2.2H2O) and Sn(Oct2) as catalyst. PLLA chemical structure was confirmed by FT-IR, 1H NMR, 13C NMR. The results from TG/DTA showed the PLLA started to degrade around 210-230 C and completely decompose at 270-400 C. Tg and Tm obtained from DCS were 55 C and 135-145 C, respectively. Molecule weight of PLLA determined by gel permeantion chromatography (GPC), were 8200 and 18500 g/mol when using TNTB and Sn (II) compounds as a catalyst, respectively.

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How to Cite
Pleanprasert, P., Khansawai, P., & Poonsawat, C. (2017). Characterization of poly (L-Lactic acid) prepared by bulk polymerization process using titanium (IV) butoxide and stannous (II) compounds. Asia-Pacific Journal of Science and Technology, 13(6), 677–682. Retrieved from https://so01.tci-thaijo.org/index.php/APST/article/view/83681
Issue
Vol. 13 No. 6 (2008): July
Section
Research Articles