A salt represented by the formula (I-Pa):
wherein Xpa represents a single bond or a C1-C4 alkylene group,
Rpa represents a single bond, a C4-C36 divalent alicyclic hydrocarbon group or a C6-C36 divalent aromatic hydrocarbon group, and one or more methylene groups in the divalent alicyclic hydrocarbon group can be replaced by —O— or —CO—,
Ypa represents a polymerizable group, and
Zpa+ represents an organic cation.
一种盐,其
化学式表示为(I-Pa),其中Xpa代表单键或C1-C4烷基,Rpa代表单键、C4-C36二价脂
环烃基或C6-C36二价
芳香烃基,脂
环烃基中的一个或多个亚甲基可以被—O—或—CO—取代,Ypa代表可聚合基团,Zpa+代表有机阳离子。