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Novel synthesis, characterization and application of dibutyrate bis(2-hydroxyethyl) terephthalamide as a plasticizer in PVC compounding

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Abstract

This study focuses on the synthesis and application of dibutyrate of bis(2-hydroxyethyl) terephthalamide (DB-BHETA) as a plasticizer in poly(vinyl chloride) (PVC) compounding. DB-BHETA was synthesized from poly(ethylene terephthalate) bottle waste through aminolysis followed by condensation reaction with butyric acid. Synthesized DB-BHETA was characterized by FTIR, DSC and NMR. Plasticized PVC was prepared by melt blending of PVC in different ratios with DB-BHETA and the mechanical, thermal and rheological properties were investigated. The glass transition temperature (T g) decreased with increasing concentration of DB-BHETA, confirming its plasticizing effect. The impact properties of PVC/DB-BHETA were maximum at weight ratio of 80/20. Shore hardness continuously reduced with increase in the concentration of DB-BHETA in PVC. Also, incorporation of DB-BHETA results in a gradual decrease in the loss modulus (viscous) and an increase in the storage modulus (elastic).

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Acknowledgments

The authors gratefully acknowledge the financial support provided by The University Grant Commission (UGC) under the CAS-SAP scheme for the study.

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Correspondence to Sanjeev R. Shukla.

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Parab, Y.S., Wasekar, P.A., Mhaske, S.T. et al. Novel synthesis, characterization and application of dibutyrate bis(2-hydroxyethyl) terephthalamide as a plasticizer in PVC compounding. Polym. Bull. 71, 2695–2707 (2014). https://doi.org/10.1007/s00289-014-1218-y

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  • DOI: https://doi.org/10.1007/s00289-014-1218-y

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