| 摘要 |
PURPOSE:To obtain a fluorine-containing ion exchange membrane, by using a reinforcing material constituted of porous fibers consisting of a fluorine- containing polymer, having a low electrolytic voltage, improve mechanical properties, e.g. flex resistance, tensile strength, etc., and suitable as diaphragms for electrolytic reduction, etc. CONSTITUTION:A fluorine-containing divinyl compound, e.g. a compound expressed by the formula, and fluorine-containing vinyl compound having ion exchange groups or functional groups convertible into the ion exchange groups are polymerized in the presence of a reinforcing material constituted of porous fibers, consisting of a fluorine-containing polymer, e.g. tetrafluoroethylene homopolymer, etc., and having 0.01-10mum pore diameter and 10-95% porosity. |
