SULFONIC ACID GROUP-CONTAINING POLYMER, SULFONIC ACID GROUP-CONTAINING AROMATIC COMPOUND AND METHOD OF MAKING THE SAME, AS WELL AS POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MOLDED PRODUCT AND SOLID POLYMER FUEL CELL USING THE SAME
申请人:Chen Qiao
公开号:US20150094446A1
公开(公告)日:2015-04-02
It is an object of the present invention to provide a sulfonic acid group-containing polymer and a sulfonic acid group-containing aromatic compound, which have excellent proton conductivity even under the low humidification condition, are excellent in mechanical strength and chemical stability and, moreover, can attain high output and excellent physical durability when processed into a solid polymer fuel cell, as well as a polymer electrolyte material, a polymer electrolyte molded product and a solid polymer fuel cell respectively using the same. The sulfonic acid group-containing polymer of the present invention is a sulfonic acid group-containing polymer comprising a constituent unit containing a sulfonic acid group (A1), and a constituent unit not containing a sulfonic acid group (A2), wherein the polymer contains a constituent unit having a specified structure as at least one constituent unit containing a sulfonic acid group (A1) at 25 mol % or more based on a sum of the constituent unit containing a sulfonic acid group (A1). Further, the polymer electrolyte material, polymer electrolyte molded product and solid polymer fuel cell of the present invention are constituted using such a sulfonic acid group-containing polymer.
本发明的目的是提供一种含有磺酸基聚合物和含有磺酸基芳香化合物的物质,即使在低湿度条件下也具有优异的质子传导性能,具有良好的机械强度和化学稳定性,并且在加工成固态聚合物燃料电池时可以实现高输出和优异的物理耐久性,同时使用该物质制备聚合物电解质材料、聚合物电解质成型产品和固态聚合物燃料电池。本发明的磺酸基聚合物是一种含有磺酸基的聚合物,包括含有磺酸基的组分单元(A1)和不含磺酸基的组分单元(A2),其中该聚合物包含至少一种具有特定结构的组分单元作为含有磺酸基的组分单元(A1),其摩尔比例在含有磺酸基的组分单元(A1)的总和中占25摩尔%或更多。此外,本发明的聚合物电解质材料、聚合物电解质成型产品和固态聚合物燃料电池是使用这种磺酸基聚合物构成的。