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Dialdehyde cellulose (DAC) derived from α-cellulose by periodate oxidation was solubilized and utilized as a suitable crosslinking agent for poly(vinyl alcohol) (PVA). The crosslinking occurs between reactive aldehyde groups of DAC on the C2 and C3 carbons of anhydroglucose unit and hydroxyl groups on PVA backbone in the presence of acidic catalyst. Two catalyst systems based on diluted hydrochloric...
Derivatization of alpha cellulose by periodate oxidation is an useful method for production of dialdehyde cellulose (DAC). Conversion of the 2,3-hydroxyl groups to a pair of aldehyde groups along with cleavage of the C2–C3 bond of anhydroglucose unit reduces crystallinity of initial material, leaving DAC soluble in water under mild conditions. Solubilization in hot water is necessary to obtain product...
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