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