Synthesis and Studies on Certain Semiconducting Copolyesteramides Containing 2, 5-Pyridine Dicarboxylic Acid and their Photocross linkable Blend Nanofibers

A series of novel random copolyesteramides from 2, 5-pyridine dicarboxylic acid and 1, 6-hexandiol/ arylidenediol with varying diamine namely, 1, 4-diaminobenzene, 4, 4'- diamino diphenyl methane and 1,6-diaminohexane were synthesized, using diphenylchlorophosphate as the condensation agent. Their structural features were investigated by viscosity measurements, FTIR, 1HNMR and 13CNMR spectral data and thermal behaviour was established by Differential Scanning Calorimetry (DSC). The synthesized copolyesteramides/PVC blend nanofibers drawn by electrospinning process were tested for photocrosslinking efficacy using UV irradiation technique. The changes in morphology of the nanofibers by UV irradiation were studied by Scanning Electron Microscopy (SEM). The frequency dependent dielectric and conductivity behaviour of the synthesized copolyesteramides were studied at different temperatures using LCR meter. The synthesized copolyesteramides with such unique properties are expected to be of use in electrochemical devices and sensors