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Low conversion copolymerization of N-vinyl-2-pyrrolidon M.W = (111.14) VP (monomer-1) has been conducted with acrylic acid AA and methymethacrylate MMA in ethanol at 70ºC , using Benzoyl peroxide BPO as initiator . The copolymer composition has been determined by elemental analysis. The monomer reactivity ratios have been calculated by the Kelen-Tudos and Finman-Ross graphical procedures . The derived reactivity ratios (r1 , r2 ) are : (0.51 , 4.85) for (VP / AA ) systems and (0.34 , 7.58) for (VP , MMA) systems , and found the reactivity ratios of the monomer AA , MMA is mor than the monomer VP in the copolymerization of (VP / AA) and (VP /MMA) systems respectly . The reactivity ratios values were used for microstructures calculation.
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Journal BS. Copolymerazaion of N-vinyl-2-pyrrolidon with Acrylic Acid and Methylmethacrylate: Rana R. Hamza|Mahmoud A. Al-Issa|Redha I. Al-Bayati. Baghdad Sci.J [Internet]. 2014Mar.2 [cited 2021Jul.28];11(1):123-7. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1542