Sulfomethylation of lignins

Water-soluble derivatives have been obtained by the sulfomethylation of technical lignins. Their semiempirical formulas have been calculated and the introduction of a sulfomethyl group into the lignin macromolecule is discussed on the basis of these formulas.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 40 64 75. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 222–225, March–April, 1998.