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    Öğe
    Phenacyl methacrylate and N-vinyl-2-pyrrolidone copolymers: Synthesis, characterization, and reactivity ratios
    (Marcel Dekker Inc, 2000) Soykan, C; Coskun, M; Ahmedzade, M; Ozdemir, E
    The free radical copolymerization of phenacyl methacrylate (PAMA) and N-Vinyl-2-pyrrolidone (N-Vp) was carried out using 2,2'-azobisisobutyronitrile (AIBN), in 1,4-dioxane solution at 70 degrees C. The polymers were characterized by FT-IR, H-1- and C-13-NMR spectroscopic methods. Solubility parameters, inherent viscosities, average molecular weight and densities of polymers were determined. Thermal properties of the homo- and copoly-mers were also studied by thermogravimetric analysis and differantial scanning calorimetry. The percentage composition of the copolymers were established by microelemental analysis. The copolymerization reactivity ratios were computed using the Fineman-Ross and Kelen-Tudos methods. The experimental data indicate random comonomer incorporation with a slightly alternating tendency.
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    Öğe
    Synthesis of p-methoxyphenacylmethacrylate
    (Elsevier Science Bv, 2001) Soykan, C; Özdemir, E; Ahmedzade, M
    p-Methoxyphenacylmethacrylate (MPMA) was prepared from p-methoxyphenacylbromide and sodium methacrylate. Polymerization of the monomer was carried out in 1,4-dioxane solution in presence of 2,2'-azobisisobutyronitrile as an initiator at 70 degreesC. The monomer and the polymer microstructure were investigated by FT-IR, H-1-NMR and C-13-NMR techniques. The oxime and hydrazone derivatives of poly(MPMA) were also prepared and characterized by FT-IR, TGA and DSC. (C) 2001 Elsevier Science B.V. All rights reserved.