Cellulose has been chemically modified by partial oxidation with periodic acid followed by coupling with various carbonyl reagents.
The modified celluloses have been tested for their resistance to fungal degradation, and some have been shown to inhibit growth at relatively low degrees of substitution (D.S.). The most effective substituent tested was phenylhydrazine, which confers complete resistance to the growth of Memnonliella echinata at a D.S. of 0.37%. Some aspects of the inhibitory mechanism and the suitability of the method as a fungus-proofing procedure are discussed.
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