{HEAD ~ Solution} of {TAIL ~ a chalcogen} containing polymer in acids and process of forming polymer articles therefrom 
of
{ HEAD ~ Solution } of { TAIL ~ a chalcogen } containing polymer in acids and process of forming polymer articles therefrom
HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH