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Random Poly(Lactic Acid-co-β-Alanine): Synthesis and Characterizations |
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| Authors: | Jihen Mahfoudh Christelle Delaite Souhir Abid Rachid El Gharbi |
| Institution: | 1. Laboratoire de Chimie Appliquée HCGP, Faculté des Sciences, Université de Sfax, 3000 Sfax, Tunisie;2. Laboratoire de Photochimie et d'Ingénierie Macromoléculaires, Université de Haute Alsace, Institut Jean-Baptiste Donnet, 3b rue Alfred Werner, 68093 Mulhouse, France |
| Abstract: | A series of random polyesteramides (PEAs) within a range of molar composition from 90/10 to 10/90 were synthesized by a direct melt polycondensation of lactic acid and β-alanine. Their structures were fully characterized by NMR spectroscopy. The resulting copolymers are amorphous; they are thermally stable to temperatures up to 254°C, and present increasing glass transition temperatures at increasing amide content. The copolymers were also characterized by FTIR and viscosimetry measurements. |
| Keywords: | Copolyesteramide lactic acid β-alanine melt polycondensation microstructure |