Reagents used in preparing a graft polymer are selected from {HEAD ~ the group} consisting of carbon dioxide, {TAIL ~ silicon halides}, and anionically polymerizable monomers 
consisting of
Reagents used in preparing a graft polymer are selected from { HEAD ~ the group } consisting of carbon dioxide , { TAIL ~ silicon halides } , and anionically polymerizable monomers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH