Latin American applied research
versión ISSN 0327-0793
ZALDIVAR, D. et al. Application of a Monte Carlo method for the evaluation of reactivity ratios in the copolymerization of furfuryl methacrylate with N-vinyl-2-pyrrolidone. Lat. Am. appl. res. [online]. 2002, vol.32, n.2, pp. 117-122. ISSN 0327-0793.
Copolymers of furfuryl methacrylate (M) with N-vinyl-2-pyrrolidone (P) were prepared by free radical copolymerization in DMF solution at 50°C, using 2,2'-azobisisobutyronitrile (AIBN) as initiator. The reactivity ratios of both monomers were calculated according to the general copolymerization equation using the Fineman-Röss and Kelen-Tüdos linearization methods, as well as the Tidwell-Mortimer non linear least-squares treatment and the Monte Carlo random method. The values of the reactivity ratios calculated using the first methodology were rM = 3.92 and rP = 0.004. Similar results were obtained by both, the Monte Carlo and the non-linear least square techniques that certified the precision of the proposed method. The microstructure of copolymer chains based on the first order Markov statistics is described.
Palabras llave : Reactivity ratios; Copolymerization; Microstructure; Furfuryl methacrylate; N-vinyl-2- pyrrolidone.