Free-radical copolymerization of methyl methacrylate with styrene in the presence of 2-mercaptoethanol

摘要: Abstract The free-radical copolymerization of methyl methacrylate (MMA) with styrene (St) in the presence 2-mercaptoethanol (ME) was investigated order to obtain ω -hydroxy oligomers random copolymer-type main chains and which may be further used prepare macromonomers. Weak retardation noticed during polymerization. It demonstrated that pseudo-kinetic rate constant method can successfully applied this copolymerization, irrespective initial monomer ratio. On basis, apparent transfer ME determined under azeotropic conditions, it found intermediate between corresponding values for MMA St homopolymerizations. M n w /M prepared increased conversion. As proceeded, MWD turned from monomodal slightly bimodal at a conversion depending on ME/monomer functionalities were around unity, making them suitable macromonomer synthesis.