Synthesis and Characterization of New Polyamides Containing Pyridine Thioether Units in the Main Chain under Microwave Irradiation (MW) and their Nanostructures

Abstract

New polyamides containing pyridine thioethers were prepared under microwave irradiation and their solubility, thermal behavior, viscosity, and nanostructures were evaluated. These polyamides showed good solubility, viscosity, and high thermal stability. The sizes of polymer species were evaluated using their SEM images.

Keywords:

• 2,6-dichloropyridine
• methylthioglycolate
• nanoparticle
• nanostructure
• polyamide
• synthesis
• thioether

Acknowledgments

The financial support of this work by Payame Noor University (PNU) Research Council is acknowledged.

Notes

^a Measured at a polymer concentration of 0.5 g/dL in DMSO solvent at 30°C.

^a Temperature of 10% weight loss determined in argon atmosphere.

^b Temperature of 50% weight loss determined in argon atmosphere.

^c Char yield calculated as the percentage of solid residue after heating from room temperature to 580°C under argon.

(++) Soluble at room temperature; (+) soluble upon heating; (±) partially soluble.

^a Solubility measured at a polymer concentration of 0.05 g/ml.