FIELD: cellulose industry. SUBSTANCE: product: cellulose sulfoacetate of the formula (image), where n 190-230 monomer unit of which contains: hydroxy-group 0.3965-0.483; sulfo-group 0.002-0.005; acetyl-group 2.52-2.60. Product is used for making membranes working under low pressure (1-3 MPa). EFFECT: improved quality of membrane. 1 tbl
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