Abstract
Bulk copolymerization of diallyl phthalate (DAP) with lauryl methacrylate (LMA) was explored in detail from various standpoints including rate of copolymerization, copolymerizability, gel point, gel fraction, composition of precopolymer and sol, and swelling ratio of gel. Thus the microheterogeneity in the co-curing processes was observed as a reflection of lowcopolymerizability of DAP toward LMA and great difference in the polarity of both monomers. This kind of heterogeneity was enhanced for the copolymerization of DAP with stearyl methacrylate, whereas reduced with butyl or methyl methacrylate. Furthermore, DAP was copolymerized with lauryl acrylate (LA) and vinyl laurate (VL); the extent of microheterogeneity was reduced in the order of increased copolymerizability LMA>LA>VL.