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A cellulose degradation technique utilizing a pressurized HCl gas (up to 100 kPa) device is introduced.

TEMPO-mediated oxidation of microgranular cellulose results in particles of three different length scales: cellulose nanocrystals as well as small (μm) and larger (tens of μm) porous particles with high charge density.

No abstract

HCl gas hydrolysis of a bacterial cellulose (BC) aerogel followed by 2,2,6,6-tetramethylpiperidine-1-oxyl radical-mediated oxidation was used to produce hydrolyzed BC with carboxylate groups, which subsequently disintegrated into a stable dispersion of cellulose nanocrystals (CNCs). The degree of polymerization was successfully reduced from 2160 to 220 with a CNC yield of >80%.