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ABSTRACT
A new methacrylic monomer from the reaction of methacryloyl chloride with p-cumylphenol has been synthesized. The effect of sterically bulky p-cumylphenyl group on homopolymerization and copolymerization was examined. In copolymers, p-cumylphenyl methacrylate increases the Tg of acrylic polymers. The Tg of the copolymers as determined by DSC agrees with both the Flory-Fox and Gordon-Taylor relationships.