| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: method involves adding organic carboxylic acid of formula: Q(CH2)m(CH(OH))nCOOH, (where Q denotes H, CH3 or COOH, each symbol m and n, which do not depend on each other, denotes 0 or a whole number from 1 to 4 and 4ëÑn+mëÑ1), to an aqueous dispersion of a fluorine-containing polymer containing a fluorine-containing emulsifying agent, followed by contact with a weakly basic anion-exchange resin for adsorption and removal of the fluorine-containing emulsifying agent. ^ EFFECT: obtaining an aqueous dispersion of a fluorine-containing polymer, having low content of a fluorine-containing emulsifying agent, using a weakly basic anion-exchange resin to remove the fluorine-containing emulsifying agent from the aqueous dispersion of the fluorine-containing polymer with high adsorption efficiency. ^ 9 cl, 8 ex, 2 tbl |
