Synthesis and characterization of a new methacrylate copolymers based on sulfonamide and coumarine: Monomer reactivity rations

In this thesis , firstly 4-methyl -2 oxo - 2H ? chromen -7-yl 2-methylprop-2-enoate(MOKMP) monomer was prepared and characterized . The free radical copolymerization of this monomer with 2-oxo-2-[(4-sulfamoylphenyl)amino]ethyl 2-methylprop-2-enoate(OSFAMP) was carried out in dimethylsulphoxide (DMSO) solvent byusing AIBN initiator at 70°C ±1 and were characterized by 1H NMR, 13C NMR andFTIR techniques. 1H-NMR analysis was used to determine the molar fractions ofMOKMP and OSFAMP in the copolymers. The monomer - reactivity ratios were calculated according to the general copolymerization equation using Kelen-Tüdos (K-T)and Finemann-Ross (F-R) linearization methods. The thermal behaviours of copolymerswith various compositions were investigated by differential scanning calorimetry (DSC)and thermogravimetric analysis (TGA).