Microwave Irradiation for Accelerating Synthesis of New Chiral Nanostructured Poly(amide-imide)s Having a Thiazole Pendant Group

Author: Mallakpour Shadpour   Zadehnazari Amin  

Publisher: Taylor & Francis Ltd

ISSN: 1023-666X

Source: International Journal of Polymer Analysis and Characterization, Vol.18, Iss.6, 2013-08, pp. : 469-477

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Abstract

Microwave irradiation was used to accelerate the polycondensation of a new thiazole-containing diamine with several chiral diacids. Polymerization reactions were carried out in molten tetrabutylammonium bromide as a green molten salt medium and triphenyl phosphite as the homogenizer. A series of new compounds were characterized by Fourier transform-infrared spectroscopy, nuclear magnetic resonance spectroscopy, and elemental analysis techniques. The polymeric samples showed high thermal stability with decomposition temperature being above 360°C; they were in a nanoscale size and were assembled uniformly and randomly in a sponge-like morphology.