The thermal degradation of poly(chloroethyl methacrylate) (PCEMA), poly(trichloroethyl methacrylate) (PTCEMA), poly(methyl-alpha-chloroacrylate) (PMCA) and their copolymers with methyl methacrylate (MMA) have been investigated. Both ester decomposition and main chain scission occurs for the chloroalkyl methacrylate polymers with the former playing the dominant role. In contradistinction, HCl elimination and aromatization prevail over other processes for PMCA. The thermolysis results are compared with radiolysis results.
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