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Abstract Purified cotton and wood pulp were hydrolyzed in 3.5 N HCl for 4-120 hours at 30°. The hydrolyzed products were nitrated with the mixtures of H3PO4-HNOS-P2O5 at 0° for 6 hours. Acetone solutions of the nitrates were fractionally precipitated with ligroin, and chain length distribution curves were plotted. These curves show no positive proof of the presence of the weak bonds which split 5000 times faster than the usual glucosidic bonds. These are well explained with the submicroscopic structure of cellulose.
Kazuo Shibata (Sun,) studied this question.
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