Abstract
N(p-Phenoxy-phenyl)methacrylamide (PhOPhMAA) prepared by condensation of methacrylic acid anhydride with p-phenoxy-phe-nylamine readily homopolymerizes and copolymerizes with styrene (St) in the presence of azobisisobutyronitrile as initiator. The copolymers prepared under different monomer-to-monomer ratios in the feed have random composition with an azeotropic point at ratio f 0.65 (St) to 0.35 (PhOPhMAA). Reactivity ratios determined by Kelen-Tüdös method are r1 (St) = 0.61; r2 (PhOPhMAA) = 0.55. Activation energy determined by Arrhenius method is 71.2 kJ mol−1. Poly-PhOPhMAA and poly(PhOPhMAA-co-St) are thermally stable up to 350°C under TGA conditions. Tgs and higher transition temperatures are within the thermally stable region.
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