Author： Wach R. Mitomo H. Yoshii F.
Publisher： Springer Publishing Company
ISSN： 0236-5731
Source： Journal of Radioanalytical and Nuclear Chemistry, Vol.261, Iss.1, 2004-07, pp. : 113-118
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Abstract
Two derivatives of cellulose were investigated by ESR method after gamma-irradiation. Irradiation of methylcellulose (MC) and hydroxyethylcellulose (HEC) results in formation of radicals on these polysaccharides. Their transformations cause main-chain scission or to the opposite effect, crosslinking of polymer. It was proposed that radicals placed on anhydroglucose repeating unit contribute to degradation reactions, and those located on side chains of derivatives, i.e., methoxy group, —O—CH3 and hydroxyetyl ether group, —O—CH2—CH2—OH participate in crosslinking.
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