ポリマー/ビニルモノマー混合比と物性の関係

概要

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Blends of various polymers and vinyl monomers were cured in the presence of dicumylperoxide. The relationships between the properties and the ratios of polymer/vinyl monomer were studied. Used polymers were EPDM, EPM, EVAc, BR and IR, and vinyl monomers were tridecylmethacrylate (TDMA), ethyleneglycoldimethacrylate (EGDMA), trimethylolpropane-trimethacrylate (TPTMA) and mixed monomers (TDMA/EGDMA, TDMA/TPTMA).The vulcanizates of EPDM/TDMA (50/50) blends in the presence of dicumylperoxide were fractionated by the solvent extraction, and the compositions were indentified by the infrared spectra. Above data showed that the graft polymerization and homopolymerization of vinyl monomer occurred simultaneously during the peroxide cure of the polymer-vinyl monomer blend.The phase-contrast microscopic study revealed that the blend of polymer with vinyl monomer had better state of dispersion than the blend of polymer with corresponding vinyl polymer.