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Synthesis and Characterisation of Co-Polyester and Their Composite

Abstract

In this paper we report synthesis of certain co-polyesters which is prepared from Di- acid ,1,4-butane diol and Azelic acid through a two step process of melt polycondensation using suitable catalyst. The synthesised random copolyesters is blended with commericially available natural polymer . The synthesized random copolyesters and their composites were characterized by means of 1H NMR, 13C NMR and FTIR . the polymer blends improve the properties such as surface hardness, stiffness, resistance to temperature and solvent attack. The effect of copolymer and their composite on their physical and Thermal properties were investigated. Thermal stability was studied by Differential scanning calorimetry (DSC), between polyesters and their composite.The mechanical properties were also studied.

J Kalpana, C Ravichandran

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