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Grafting of methyl acrylate onto cellulose by ceric ion

, : Grafting of methyl acrylate onto cellulose by ceric ion. Journal of Macromolecular Science-Chemistry A25(12): 1633-1650

Methyl acrylate was grafted onto dissolving pulp by ceric ion in aqueous sulfuric acid under oxygen-free argon. At a low Ce(IV) concentration (up to 1 mmol/L), the rate of polymerization (Rp) is proportional to [Ce]0.5[MA]1[cellulose]1. At higher concentrations of ceric ion (1-20 mmol/L), Rp is proportional to [Ce]0[M]1.5[cellulose]1. The mechanism of grafting is consistent with a kinetic scheme involving initiation by primary radicals and termination by growing polymer radicals. Above 20 mmol/L of ceric salt, the data are consistent with the linear termination mode.


DOI: 10.1080/10601328808055091

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