Synthesis, Characterization and Biocidal Properties of Some Random Copolyesters Containing Chalcone Diol Moiety

摘要

A series of 8 random copolyesters were produced by polycondensation of chalcone diol with terepththaloyl chloride, isophthaloyl chloride, adipoyl chloride, oxalyl chloride, glutaryl chloride and succinyl chloride. The Claisen-Schmidt reaction in acidic medium was used to prepare chalcone diol. The characterization of prepard random copolyesters was done by checking the solubility in different solvents and viscosity measurements. FT-TR,~1H- and ~(13)C-NMR spectroscopic techniques were applied to study the structure of repeating units available in the polymer chain. Thermal analysis was done by DSC. The well-diffusion method was employed to establish the biocidal efficacy of these 8 copolyesters by using a Gram-positive and Gram-negative bacteria.