{HEAD ~ A composition} 19, wherein said {TAIL ~ water soluble monomers} are hydroxyalkyl vinyl ethers, wherein alkyl has 2 to 4 carbon atoms 
{ HEAD ~ A composition } 19 , wherein said { TAIL ~ water soluble monomers } are hydroxyalkyl vinyl ethers , wherein alkyl has 2 to 4 carbon atoms
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH