Abstract
Styrene (ST) and methyl methacrylate (MMA) were grafted onto cellulose gel, which had been prepared from cellulose solution in 85% phosphoric acid, by use of ceric ammonium nitrate as an initiator.The frequency of grafting for the ST/cellulose graft copolymer obtained as a toluene extract separated from the attendant unreacted cellulose was found to be unity. Intrinsic viscosities of the cellulose graft copolymers extracted from graft products with organic solvents implied that the copolymers were in a uniform molecular dispersion, forming monomolecular micell-like structures in the organic solvents. Cellulose crystallites were hardly found in the film prepared with the MMA/cellulose graft copolymer extracted from the MMA/cellulose graft product with 1, 2-dichloroethane.
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