{TAIL ~ Stable powders} made from photosensitive polycrystalline complexes of heterocyclic monomers and {HEAD ~ their polymers} 
{ TAIL ~ Stable powders } made from photosensitive polycrystalline complexes of heterocyclic monomers and { HEAD ~ their polymers }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD