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An aromatic polycarbonate containing a structural unit of the formula: wherein R1 is a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, Ar1 is a substituted or unsubstituted aryl group and Ar2 and Ar3 are independently a substituted or unsubstituted arylene group. The aromatic polycarbonate is capable of transferring charges and is used for forming a photosensitive layer of an electrophotographic photosensitive medium.