{HEAD ~ A polymer solution} is formed from a sulfur or {TAIL ~ oxygen} containing aromatic polymer solute such as poly or poly, a Lewis Acid solute derivative such as arsenic hexafluoride and a strong acid solvent such as sulfuric acid 
is formed from
{ HEAD ~ A polymer solution } is formed from a sulfur or { TAIL ~ oxygen } containing aromatic polymer solute such as poly or poly , a Lewis Acid solute derivative such as arsenic hexafluoride and a strong acid solvent such as sulfuric acid
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH 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