Abstract
p-Chlorophenyl methacrylate has been copolymerized with the dimethacrylates of ethylene glycol, diphenylolpropane and hydroquinone by the bulk method using benzoyl peroxide as the catalyst. The dependence of the process rate on the oxygen content of air, of the initiator and of the comonomer ratio has been investigated. The copolymer composition was found not to be affected by conversion and to depend only on the comonomers ratio. The dimethacrylate ethylene glycol- p-chlorophenyl methacrylate pair has been found to give a copolymer composition close to that of the monomer mixture, and to consist at all ratios of an azeotropic mixture. The mutual reactivities of the monomers have been calculated and found to be near unity. The copolymers with a near 100% conversion have been characterized by TGA and by the thermomechanical curves.
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