| 摘要 |
A compound having the formula (I): wherein a is an integer of from 1 to 10, and x is an integer of from 1 to 3, X1 comprises a fluoroalcohol, fluorinated ester, or fluorinated anhydride, Y is a single bond, C1-20 alkylene group, O, S, NR, ester, carbonate, sulfonate, sulfone, or sulfonamide, wherein R is H or C1-20 alkyl, and wherein the C1-20 alkylene group is structurally only carbon, or one or more structural carbon atoms in the C1-20 alkylene group is replaced by oxygen, carbonyl, ester, or a combination comprising at least one of the foregoing, Ar is a substituted or unsubstituted, C5 or greater monocyclic, polycyclic, or fused polycyclic cycloalkyl; or a substituted or unsubstituted, C5 or greater monocyclic, polycyclic, or fused polycyclic aryl group, wherein the cycloalkyl or aryl is a carbocycle or comprises a heteroatom comprising O, S, N, F, or a combination comprising at least one of the foregoing, each R1 is independently a substituted C5-40 aryl, substituted C5-40 heteroaryl, C1-40 alkyl, a C3-40 cycloalkyl, wherein when x is 1, the two groups R1 are separate or bonded to each other to form a C4-40 ring structure, and Z− is a carboxylate, sulfate, sulfonate, sulfamate, or the anion of a sulfonimide, wherein when Y is a single bond, Z− is not sulfonate. |
