Novel polyesters and polyester/Cloisite 30B nanocomposites based on a new rhodanine-based monomer

• Published in: Polymer science. Series B 2017-05, Vol.59 (3), p.268-280
• Main Authors: Nasiri, F., Mansoori, Y., Rostamzadeh, N.
• Format: Article
• Language: English
• Subjects: Chemical synthesis; Chemistry; Chemistry and Materials Science; Chlorides; Clay; Condensation; Dicarboxylic acids; Diffraction; Fourier transforms; Infrared spectroscopy; Nanocomposites; Polyester resins; Polymer Sciences; Spectroscopic analysis; Synthesis; Transmission electron microscopy; X-ray diffraction
• ISSN: 1560-0904; 1555-6123
• DOI: 10.1134/S1560090417030137

A novel bis-diol monomer, 3,3'-bis-(2-hydroxyethyl)-2,2'-dithioxo-[5,5']bithiazolidinylidene-4,4'-dione, was prepared in a one-pot three component reaction and used in a polyesterification reaction with various aromatic dicarboxylic acids using tosyl chloride/dimethylformamide/pyridine system as a condensing agent in order to generate a series of new polyesters. The prepared polyesters were characterized by FTIR spectroscopy and elemental analysis. In the next part, a series of polyester/clay nanocomposites were synthesized through a polyesterification reaction of the synthesized monomer with iso-phthalic acid. Cloisite 30B was used as the filler at different concentrations. Wide-angle X-ray diffraction and transmission electron microscopy studies showed that the organoclay layers are mainly exfoliated in the nanocomposites containing 1 wt % of Cloisite 30B.