It may be desirable to evaporate {HEAD ~ the solvent} from {TAIL ~ the second solution} to leave a film of the polycrystalline complex prior to photopolymerizing 
from
It may be desirable to evaporate { HEAD ~ the solvent } from { TAIL ~ the second solution } to leave a film of the polycrystalline complex prior to photopolymerizing
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH