In the graft copolymerization of polymethylmethacrylate (PMMA) onto cellulose using Ce14, the influence of the state of aggregation of cellulose on graft ratio, grafting rate, and molecular weight of grafted P. M. M. A. were verified. The change in the state of aggregation of cellulose during the graft copolymerization was studied by measuring the stress relaxation of cellulose.
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Shirakashi et al. (1963) studied this question.