Low molecular weight polyketones were prepared by the Friedel-Crafts reaction from p-cresol, chloroacetylchloride and dichloroalkanes, i. e. dichloromethane and 1,2-dichloroethane. The polyketones were characterized by IR spectra and vapour pressure osmometry. The thermal properties were studied by thermogravimetry and differential scanning calorimetry. The kinetic parameters for the thermal decomposition reaction were evaluated by the methods of Broido and Doyle. The polyketones were found to be thermally stable up to 200°C. They show antimicrobial properties against bacteria, fungi and yeast.
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Patel et al. (1998) studied this question.
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