The present invention relates to a process for purifying {HEAD ~ a polar vinyl compound} such as {TAIL ~ N vinylcarboxamides} 
The present invention relates to a process for purifying { HEAD ~ a polar vinyl compound } such as { TAIL ~ N vinylcarboxamides }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL