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(a) Density (data are from the references: [40,121,122,123,124]) and (b) specific surface area (data from references [40,122,125,126]) of cellulose II aerogels as a function of cellulose concentration in solution, all for the dissolved microcrystalline cellulose or dissolving pulp in different solvents (first position in the legend) and coagulated in different non-solvents (second position in the legend); the solid line in (a) corresponds to the case of no shrinkage.
