The graft copolymerization of methyl methacrylate(MMA) and 2-vinylnaphthalene(2-VN) onto ethylene-propylene-diene terpolymer(EPDM) was carried out with benzoyl peroxide(BPO) as an initiator in tetrahydrofuran(THF) at 80℃ for 60 hrs. The synthesizwd graft copolymer, MMA-EPDM-2-VN(MEV₂), was identified by IR spectrum. In order to investigate the radiation resistance of the MEV₂ the light resistance, tensile properties and thermal stabilith of the graft copolymer before and after γ-ray radiation were investigated. Grafting efficiency was 47% and number average molecular weight(M_n) was 90,000. the light resistance, radiation resistance, and thermal stablilty of MEV₂ were better than those of ABS. Three kinds of blends containing MEV₂ with poly(vinylchloride)(PVC), Poly(methacrylate)(PMMA) and polycarbonate(PC) were prepared by casting from their THF and chloroform solutions, respectively. Miscibility of MEV₂ with PC was shown better than that with PVC or PMMA from the differential scanning calorimeter(DSC) and fluorescence spectroscopic studies, even though all of the blends showed phase separation.

Ethylene-propylene-야

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