(57) A heat-sensitive lithographic printing plate precursor comprising on a grained and
anodized aluminum support a compound which is capable of converting form a hydrophobic
state to a hydrophilic state or vice versa upon exposure to heat, and is represented
by the following formula:
A-(L)n-B
wherein L represents a linking group, n represents 0 or 1 and B represents a thermo-labile
group;
characterized in that the compound further comprises the group A which is a functional
group capable of interacting with the surface of a grained and anodized aluminum support
and is selected from the list consisting of a halosilanyl group, an alkoxysilanyl
group, a phosphonic acid group or a salt thereof, a phosphoric acid group or a salt
thereof, a salicylic acid group or a salt thereof, a boronic acid group or an ester
or a salt thereof, an optionally substituted di or tri-hydroxyaryl group, an optionally
substituted salicaldoxime group, an optionally substituted salicaldimine group, an
optionally substituted hydroxyheteroaryl group, an amidine group, a 1,3-dicarbonyl
group or a group represented by the formula (i)
wherein Q and Z independently represent the necessary atoms to form an optionally
substituted five or six membered aromatic or heteroaromatic ring.
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