<論文>麻のオゾン酸化とそれへのメタクリル酸メチルのグラフト共重合

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After the activation of hemp by ozone-oxidation, methyl methacrylate was graft copolymerized onto hemp. The peroxyl radical as active species were converted to hydroperoxide, and the hydro-peroxide was broken and gave alcoxyl radical and hydroxyl radical. The alcoxyl radical which operated as active species initiated graft copolymerization. With respect to the graft copolymerization, at the constant polymerization time, the total conversion, the graft conversion, and the degree of grafting increased with ozone-oxidation tirne. On the other hand, the graft efficiency decreased with ozone-oxidation time. At the constant oxidation time, the total conversion, the graft conversion, and the degree of grafting increased with polymerization time, and the graft efficiency decreased The molecular weight of branch polymer and the number of branch were the order of 10^6 and 10^<-2>, respectively, and this means that the graft copolymer had several branches per unit of 100 trunk polymer chains.
神戸市立工業高等専門学校の論文
1997-08-30