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1. An electrophotographic photosensitive member, comprising:
a support; an undercoat layer formed on the support; and a photosensitive layer formed on the undercoat layer; wherein the undercoat layer comprises a cured product having a structure represented by formula (1) belowwhere, in formula (1),
R1 and R3 each independently represent a substituted or unsubstituted alkylene group having 1 to 10 main-chain atoms or a substituted or unsubstituted phenylene group, R2 represents a single bond, a substituted or unsubstituted alkylene group having 1 to 10 main-chain atoms, or a substituted or unsubstituted phenylene group, a substituent of the substituted alkylene group is an alkyl group, an aryl group, a hydroxy group, or a halogen atom, a substituent of the substituted phenylene group is a halogen atom, a nitro group, a cyano group, a hydroxy group, an alkyl group, or a halogenated alkyl group, R9 represents a hydrogen atom or an alkyl group, A1 represents a group represented by any one of formulae (A-1) to (A-6) below, B1 represents a group represented by any one of formulae (B-1) to (B-3) below, D1 represents a group having 5 to 15 main-chain atoms and being represented by formula (D) below, and E1 represents a divalent group represented by any one of formulae (E-1) to (E-8) below:where, in formula (A-5), R10 represents a hydrogen atom or an alkyl group;where, in formulae (B-1) to (B-3),
R2 represents a single bond, a substituted or unsubstituted alkylene group having 1 to 10 main-chain atoms or a substituted or unsubstituted phenylene group, R6 and R7 each independently represent an alkylene group having 1 to 5 main-chain atoms, an alkylene group having 1 to 5 main-chain atoms and being substituted with an alkyl group having 1 to 5 carbon atoms, an alkylene group having 1 to 5 main-chain atoms and being substituted with a benzyl group, an alkylene group having 1 to 5 main-chain atoms and being substituted with an alkoxycarbonyl group, or an alkylene group having 1 to 5 main-chain atoms and being substituted with a phenyl group, one of the carbon atoms in the main chain of the alkylene group may be replaced with O, S, NH, or NR15, R15 representing an alkyl group, Ar2 represents a substituted or unsubstituted phenylene group, a substituent of the substituted phenylene group is a halogen atom, a nitro group, a hydroxy group, a cyano group, an alkyl group, or a halogenated alkyl group, R12 represents a hydrogen atom or an alkyl group, A1 and A2 each represent a group represented by any one of formulae (A-1) to (A-6) above, o, p and q each independently represent 0 or 1 and a sum of o, p and q is 1 to 3, and * represents a side in which R3 of formula (1) is bonded;where, in formula (D),
R4, R5, R6 and R7 each independently represent an alkylene group having 1 to 5 main-chain atoms, an alkylene group having 1 to 5 main-chain atoms and being substituted with an alkyl group having 1 to 5 carbon atoms, an alkylene group having 1 to 5 main-chain atoms and being substituted with a benzyl group, an alkylene group having 1 to 5 main-chain atoms and being substituted with an alkoxycarbonyl group, or an alkylene group having 1 to 5 main-chain atoms and being substituted with a phenyl group, one of the carbon atoms in the main chain of the alkylene group may be replaced with O, S, NH, or NR15, R15 representing an alkyl group, Ar1 and Ar2 each independently represent a substituted or unsubstituted phenylene group, a substituent of the substituted phenylene group is a halogen atom, a nitro group, a hydroxy group, a cyano group, an alkyl group, or a halogenated alkyl group, A2 represents a group represented by any one of formulae (A-1) to (A-6) above, and l, m, n, o, p and q each independently represent 0 or 1, a sum of l, m and n is 1 to 3, and a sum of o, p and q is 1 to 3; andwhere, in formulae (E-1) to (E-8),
two selected from X11 to X16, two selected from X21 to X29, two selected from X31 to X36, two selected from X41 to X48, two selected from X51 to X58, two selected from X61 to X66, two selected from X71 to X78, and two selected from X81 to X88 each represent a single bond, the rest of X11 to X16, X21 to X29, X31 to X36, X41 to X48, X51 to X58, X61 to X66, X71 to X78, and X81 to X88 each independently represent a hydrogen atom, a halogen atom, an alkoxycarbonyl group, a carboxyl group, a cyano group, a dialkylamino group, a hydroxy group, a heterocyclic group, a nitro group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkyl group, and Z51, Z52, Z61, Z62, and Z81 each independently represent an oxygen atom, a C(CN)2 group, or N—R11, with R11 representing a substituted or unsubstituted aryl group or a substituted or unsubstituted alkyl group. |
