00629naa#a2200205#i#450# EN\\bibl\98690 20251005025458.7 3034-4689 20250801b2025####ek#y0engy0150####ca RU INVESTIGATION OF THE ETHERIFICATION REACTION OF ORTHOPHOSPHORIC ACID WITH POLYETHYLENE OXIDE Journal article Kazan Kazan National Research Technological University 2025 4 с. Journal article local Sazonov O O Zakirov I. N. Kostikov A. R. Nizamov A. A. Davletbaev R S vestniktu.ru