{HEAD ~ A coating} for an ink jet printhead front face, wherein the coating comprises a structured organic film comprising a plurality of segments, {TAIL ~ a plurality} of linkers arranged as a covalent organic framework 
{ HEAD ~ A coating } for an ink jet printhead front face , wherein the coating comprises a structured organic film comprising a plurality of segments , { TAIL ~ a plurality } of linkers arranged as a covalent organic framework
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH