Preparation and anti-microbial properties of friedel—crafts resins

Friedel-Crafts resins were prepared by reacting chloroacetyl chloride, 1,2-dichloroethane and dichloromethane with m-xylene using carbon disulfide as solvent and anhydrous AlCl3 as catalyst. The resins were characterized by IR spectra and number average molecular weight measured by vapour pressure osmometry. The thermal properties were studied by thermogravimetry and differential scanning calorimetry. All the resins were tested for their microbial activity against Pseudomonas fluorescens, Bacillus subtilis and Aspergillus niger. The results show that most of the resins can be used as biocides.