Dynamic interfacial tensions of sulfobetaine and polymers solutions: Effect of structures

•HPAM forms mixed adsorption film, while HMPAM forms interfacial associations with ASB molecules.•The tight interfacial film and steric hindrance make HPAM and HMPAM have little influence on the IFTs for BSB.•The mixed adsorption of oleic acid and betaine molecules results in a significant decrease in IFTs, especially for BSB.•The strong synergistic effect between oleic acid and BSB is disrupted by polymers, thus IFTs increase significantly.