Another possible method is to remove {HEAD ~ the olefin treated titanium halide} from {TAIL ~ the solvent}, wash it, if necessary, to remove excess olefin, and then add the electron donor either directly or in solution with an inert solvent 
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Another possible method is to remove { HEAD ~ the olefin treated titanium halide } from { TAIL ~ the solvent } , wash it , if necessary , to remove excess olefin , and then add the electron donor either directly or in solution with an inert solvent
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH