The present invention provides an imageable element including a
lithographic substrate and an imageable layer disposed on the substrate.
The imageable layer includes a radically polymerizable component, an
initiator system capable of generating radicals sufficient to initiate a
polymerization reaction upon exposure to imaging radiation, and a
polymeric binder having a hydrophobic backbone and including
constitutional units having a pendant group including a hydrophilic
poly(alkylene oxide) segment. The imageable element can be developed
using an aqueous developer solution. Alternatively, the imageable element
can be developed on-press by contact with ink and/or fountain solution.