Polymer transducer using paste and coating film as electrolyte membrane and electrode membrane

摘要

[PROBLEMS] To provide a paste that can be adjusted to an arbitrary solid content concentration and excellent in handling property, coating property, and storage stability, and has a uniform and excellent flexibility by a few coating and drying processes. There are provided an electrolyte membrane / electrode membrane which is a coating film formed in a thickness of 5 mm and a polymer transducer which can be realized industrially and economically and which exhibits excellent performance. The paste includes a polymer block (a-1) containing a unit represented by the chemical formula (1) and a rubbery polymer block (a-2) substantially free of ionic groups at room temperature. A solid polymer electrolyte (A) comprising a block copolymer containing, an organic solvent (B) having a boiling point of 150 ° C. or higher, an insoluble in the organic solvent (B), a major axis of 1 to 100 μm and an aspect ratio of 5 The following non-dissociable particles (C) are contained. In the polymer transducer, either an electrolyte membrane or a pair of electrode membranes sandwiching the electrolyte membrane is formed by drying and solidifying this paste.