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- W2004284983 abstract "ABSTRACT 4-Bromobenzyl methacrylate [BrBMA] monomer was synthesized from a reaction of sodium methacrylate with 4-bromobenzylbromide. The copolymerization of this monomer with ethyl methacrylate (EMA) and its homopolymerization were carried out in a 1,4-dioxane solution at 60°C using 2,2′-azobisisobutyronitrile [AIBN] as initiator. The monomer and the polymers were characterized by IR, 1H and 13C-NMR techniques. The composition of monomeric units in the copolymer system was calculated using 1H-NMR spectroscopy by comparing the integral values of well separated aromatic and aliphatic proton peaks. The monomer reactivity ratios of copolymerization were determined by using the Kelen-Tüdös (K-T), Inverted Fineman-Ross (IFR) and Yezrielev-Brokhina-Roskin (YBR) methods, and were found to be r1=0.44, r2=0.63 and r1=0.24, r2=0.47 and r1=0.37, r2=0.64, respectively (r1 is the monomer reactivity ratio of BrBMA). Based on the experimental data of the K-T method, triad analysis was performed. It is concluded that this copolymerization results in statistical-type macromolecules. The solubility parameters and the glass transition temperature of the copolymers were determined as a function of copolymer composition. Keywords: Monomer reactivity ratiosEthylmethacrylate Acknowledgments" @default.
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- W2004284983 date "2002-03-09" @default.
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- W2004284983 title "A STUDY OF COPOLYMERIZATION WITH 4-BROMOBENZYL METHACRYLATE AND ETHYL METHACRYLATE" @default.
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- W2004284983 doi "https://doi.org/10.1081/ma-120013569" @default.
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