화학공학소재연구정보센터
Macromolecular Research, Vol.22, No.3, 318-323, March, 2014
Optimization Grafting Conditions and Characterization of Methyl Cellulose Grafted Polyacrylonitrile Copolymer
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Methyl cellulose-graft-polyacrylonitrile (MC-g-PAN) copolymer was synthesized by free-radical polymerization using cerium ammonium nitrate (CAN) as an initiator in an aqueous medium. The characteristics were found to depend primarily on the polyacrylonitrile content rather than the graft density or the polyacrylonitrile chain length according to reaction parameters, such as CAN concentration, acrylonitrile concentration, reaction temperature, and reaction time. The successful grafting was confirmed using various analytical tools including FTIR, 1H NMR, XPS, XRD, and TGA. The percentage of graft copolymerization increased with increasing monomer and CAN concentration. The mechanical properties of graft copolymers were measured and investigated as a function of the ratio of grafting.
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