{HEAD ~ Another object} is to provide {TAIL ~ such a process} which forms a polymer fraction with a certain monomeric composition during one phase and another polymer fraction of different monomer composition and molecular weight in a second phase 
is to provide
{ HEAD ~ Another object } is to provide { TAIL ~ such a process } which forms a polymer fraction with a certain monomeric composition during one phase and another polymer fraction of different monomer composition and molecular weight in a second phase
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL 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 OTH