SynopsisThe preparation of copolymers of a-methylstyrene and styrene in an emulsion system is described. At both 40 and 60°C, there was no evidence of deviation from simple kinetics. Polymers of high molecular weight and high a-methylstyrene content showed good thermal properties such as TB and softening point. However, these polymers proved to be awkward to process due to a strong proclivity to degrade under shearing conditions.
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