| 主权项 |
1. A charging member comprising:
a support, and a surface layer on the support; wherein, the surface layer comprises a polymer compound having a structural unit represented by the following formula (1): wherein A represents an aromatic cyclic hydrocarbon group; R1 represents any one of the following formulae (2) to (5); L represents a polysiloxane having at least one of an SiO3/2 unit (T) and an SiO2/2 unit (D); and U represents an integer of 1 or more, with the proviso that U is integer of 2 or more, a plurality of R1 represent any one of the following formulae (2) to (5) respectively; wherein R2 to R6, R9 to R13, R18, R19, R24 and R25 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a hydroxyl group, a carboxyl group or an amino group; R7, R8, R14 to R17, R22, R23, and R28 to R31 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; R20, R21, R26 and R27 each independently represent a hydrogen atom, an alkoxy group or alkyl group having 1 to 4 carbon atoms; n, m, l, q, s and t each independently represent an integer of 1 to 8, and p and r each independently represent an integer of 4 to 12; x and y each independently represent 0 or 1; the symbol “*” represents the binding site with a silicon atom in a polysiloxane represented by L in the formula (1); and the symbol “**” represents the binding site with an oxygen atom in a unit represented by —(R1(L)-O)— in the formula (1). |
