Journal of New Technology and Materials
Volume 6, Numéro 1, Pages 49-59
2016-06-30

Synthesis And Characterization Of L-alanine Based Poly(ester-amide)s



Authors : Abbes Marwa . Salhi Slim . Delaite Christelle . Abid Souhir . El-gharbi Rachid .

Abstract

Novel biomaterials L-alanine based poly(ester-amide)s (PEAs) differing in the amide/ester ratio have been directly synthesized by direct melt copolycondensation of Adipic acid, L-alanine and various aliphatic and heterocyclic diols. PEAs were systematically characterized with intrinsic viscosity, FTIR, 1H-NMR, 13C-NMR, DSC and SEC measurements. The resulting copolymers are amorphous and present increasing glass transition temperatures at increasing L-Alanine contents. L-Alanine-PEAs proved to be materials having high molecular weights that could reach 41800 g/mol.

Keywords

Adipic acid/ L-alanine/ melt polycondensation/ microstructure/ NMR/ Poly(ester-amide).

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