Electrophotographic light-sensitive material

An electrophotographic light-sensitive material comprising a support having provided thereon a photoconductive layer containing at least inorganic photoconductive particles and a binder resin, wherein the binder resin comprises a graft-type copolymer formed from at least a monofunctional macromonomer (M) having a weight average molecular weight of not more than 2.times.10.sup.4 and a monomer represented by the following formula (III), said macromonomer (M) comprising at least one polymer component represented by the following formulae (IIa) and (IIb) and at least one polymer component containing at least one polar group selected from --COOH, --PO.sub.3 H.sub.2, --SO.sub.3 H, --OH, and ##STR227## (wherein R.sup.1 represents a hydrocarbon group or --OR.sup.2 (wherein R.sup.2 represents a hydrocarbon group)), and said macromonomer (M) having a polymerizable double bond group represented by the following formula (I) bonded to only one terminal of the main chain of the polymer;

• ##STR228## wherein X.sup.o represents --COO--, --OCO--, --CH.sub.2 OCO--, --CH.sub.2 COO--, --O--, --SO.sub.2 --, --CO--, ##STR229## (wherein R.sup.11 represents a hydrogen atom or a hydrocarbon group), and a.sup.1 and a.sup.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, a cyano group, a hydrocarbon group, --COO--Z.sup.1 or --COO--Z.sup.1 bonded via a hydrocarbon group (wherein Z.sup.1 represents a hydrogen atom or a hydrocarbon group which may be substituted);
• ##STR230## wherein X.sup.1 has the same meaning as X.sup.o in formula (I);
• Q.sup.1 represents an aliphatic group having from 1 to 18 carbon atoms or an aromatic group having from 6 to 12 carbon atoms;
• b.sup.1 and b.sup.2, which may be the same or different have the same meaning as a.sup.1 and a.sup.2 in formula (I);
• and V represents --CN, --CONH.sub.2, or ##STR231## wherein Y represents a hydrogen atom, a halogen atom, an alkoxy group or --COOZ.sup.2 (wherein Z.sup.2 represents an alkyl group, an aralkyl group, or an aryl group));
• ##STR232## wherein X.sup.2 has the same meaning as X.sup.o in formula (I);
• Q.sup.2 has the same meaning as Q.sup.1 in formula (IIa);
• and c.sup.1 and c.sub.2, which may be the same of different, have the same meaning as a.sup.1 and a.sup.2 in formula (I).