Abstract
The effect of substituent distribution on the water solubility of O-methylcellulose (MC) was re-examined to elucidate the lower limit of the degree of substitution (DS) in water-soluble MC. To this end, a series of 2,3-MCs which are regioselectively substituted at the C-2 and C-3 hydroxyl groups were prepared by homogeneous methylation. It was found that the lower limit for the DS value of water-soluble 2,3-MC was almost the same as that for MCs having even distributions of substituents along the cellulose chain as well as in the anhydroglucose units.
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LIU, H.Q., ZHANG, L.N., TAKARAGI, A. et al. Effect of substituent distribution on water solubility of O-methylcellulose. Cellulose 4, 321–327 (1997). https://doi.org/10.1023/A:1018404426960
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DOI: https://doi.org/10.1023/A:1018404426960