Copolymers of 2,4‐dichlorophenyl acrylate (2,4‐DPA) and 4‐chlorophenyl acrylate (PCPA) were synthesized with different monomer feed ratios using N, N‐dimethylformamide as a solvent and 2,2′‐azobisisobutyronitrile (AIBN) as an initiator at 70°C. Copolymers of different molecular weight having different proportion of the monomers were prepared. The copolymers were characterized by Infrared Red spectroscopy and copolymer composition was determined with UV‐spectroscopy. The linearization methods of Fineman‐Ross and Kelen‐Tudos were employed to obtain the monomer reactivity ratios. The molecular weight and polydispersity index were determined by gel permeation chromatography (GPC). Thermogravimetric analysis of polymers was carried out in nitrogen atmosphere. The homo and copolymers were tested for their antimicrobial properties against selected microorganisms and it was observed that depending on the chlorine content of the polymers the antimicrobial activities differ.
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