Bulk copolymerization of acrylamide and crotonic acid

Bulk copolymerization of acrylamide and crotonic acid has been carried out. The results indicate that both monomers form copolymer in all monomeric ratios. The induction period is 40 minutes. The increasing concentration of acrylamide and benzoyl peroxide and increase in temperature and time enhance the rate of formation of copolymer. Monomer reactivity ratios of acrylamide and crotonic acid are determined experimentally using the rearranged form of copolymer composition equation. Molecular weight of the copolymer samples show that the copolymer of low molecular weight may be prepared at high temperature. All copolymer samples are white crystalline substances that become light brown at 200-210°C and burn when temperature reaches to 270°C