Provided are a curable composition including an amide compound that is represented by Formula (1) below and of which a density of sulfonic acid is 3.9 milliequivalent/g or greater.
m represents an integer of 1 or greater, n represents an integer of 2 or greater, L1 represents a m+1-valent linking group, and L2 represents an n-valent linking group. R1 represents a hydrogen atom or an alkyl group, and R2 represents —SO3−M+ or —SO3R3 (R3 represents an alkyl group or an aryl group). Here, in a case where there are plural R2's, not all of the R2's are —SO3R3. M+ represents a hydrogen ion, an inorganic ion, or an organic ion.
本发明提供了一种可固化组合物,其中包括由下式(1)表示的酰胺化合物,其
磺酸密度为 3.9 毫当量/克或更高。
m 代表 1 或更大的整数,n 代表 2 或更大的整数,L1 代表 m+1 价连接基团,
L2 代表 n 价连接基团。R1 代表氢原子或烷基,R2 代表-SO3-M+ 或-SO3R3(R3 代表烷基或芳基)。这里,在有多个 R2 的情况下,并非所有的 R2 都是-SO3R3。M+ 代表氢离子、无机离子或有机离子。