A crosslinking agent includes a compound represented by the following formula (1). In the formula (1), R1, R2, and R3 are independently a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R1 are identical or different, a plurality of R2 are identical or different, a plurality of R3 are identical or different, provided that at least one of R1, R2, and R3 is a fluorine atom or a fluorine atom-containing group, m is an integer of from 2 to 6, l is an integer of from 0 to 2, and each hydrogen on the benzene ring(s) is optionally substituted with a substituent.
交联剂包括下式(1)所代表的化合物。式(1)中,R1、R2 和 R3 独立地为
氟原子、烷基、氟烷基或取代或未取代的芳基,多个 R1 相同或不同,多个 R2 相同或不同,多个 R3 相同或不同、条件是 R1、R2 和 R3 中至少有一个是
氟原子或含
氟原子的基团,m 是 2 至 6 的整数,l 是 0 至 2 的整数,且苯环上的每个氢可选择被取代基取代。