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ATURATED copolyesters were prepared by copolyesterfication of bisphenol-A (BPA) and phthalic anhydride or tetrabromophthalic anhydride with ethylene glycol, diethylene glycol, 1,3-propane diol, 1,5-pentane diol, 1,6-hexane diol and cis-2-butene-1,4-diol. Also, unsaturated copolyesters were prepared by copolyesterification of bisphenol-A and maleic anhydride with the same glycols. All the copolyester resins obtained have been characterized; unsaturated copolyesters were found to cure with styrene. The properties of the copolyester in the form of films were determined. Also, the fire retardancy of polyesters was evaluated as varnish films on plywood strips. IR and HNMR spectroscopy were used for characterization of the copolyester resins. The antimicrobial activity of the copolyesters obtained was examined against gram-positive and gram-negative bacteria.

journal of textiles coloration and polymer science/egyptian journal of textile and polymer science and technology/journal of textiles coloration and polymer science 

Synthesis, Characterization and Biological Activity of Saturated and Unsaturated Copolyesters Based on Bisphenol-A