POLYARYLENEETHERKETONES OBTAINING WITH REACTION OF NUCLEOPHILIC SUBSTITUTION - Salamov, Ali Kh.; Mikitaev, Abdulakh K.; Beev, Aues A.; Beeva, Julietti A.; Ligidov, Mukhamed Kh.; Pakhomov, Sergey I. (ChemChemTech, 2018)