Such catalyst systems give both high productivity and low solubles in {TAIL ~ the polymerization} of {HEAD ~ propylene} 
Such catalyst systems give both high productivity and low solubles in { TAIL ~ the polymerization } of { HEAD ~ propylene }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD