Abstract
AbstractGamma irradiation of methyl methacrylate monomer in the presence of crosslinked poly(methyl methacrylate) leads to essentially no incorporation of new polymer into the insoluble network. Irradiation of solutions of poly(alkyl methacrylates) in methyl methacrylate produces graft copolymers in relatively low efficiency when the alkyl group is butyl, lauryl, stearyl, isopropyl, 2‐ethylhexyl, cyclohexyl, or neopentyl, but little grafting is observed when the alkyl group is tert‐butyl. It is concluded that prediction of grafting efficiencies cannot be made from the relative energy requirements for polymerization of monomer and cleavage of main‐chain carbon‐carbon bonds in the polymer. Evidence for grafting of alkyl methacrylates to poly(alkyl acrylates) is also presented.
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