00663naa#a2200193#i#450# EN\\bibl\34255 /en/manage/index 20250902190736.2 2686-9896 20190415b2019####ek#y0engy0150####ca RU CHEMICAL MODIFICATION OF COPOLYMERS Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2019 1 с. Journal article local Prozorova Galina Firsovna Kuznecova Nadezhda Petrovna Pozdnyakov Aleksandr Sergeevich fht.editorum.ru /en/manage/index