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The present work is synthesis of biobased polyesters from citric acid and mannitol while polyamide from citric acid and diethylene triamine (DETA). Both reactions are carried by melt condensation polymerization technique. The products are characterized by FTIR for functional group conversion. The acid value also determined. The thermal properties are characterized by thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC).

Synthesis and Characterization of Bio-Based Polyester and Polyamide from Citric Acid and Mannitol