Surface active properties of amphiphilic block-copolymer Pluronic P123 in aqueous solution have been studied. Surface active of block-copolymer is similar to nonionic surfactant. Diameter of P123 aggregates equals to 14 nm. Aggregation properties of mixed system nonionic surfactant — block-copolymer considering the state of surfactant micelles and polymer aggregates in the solution have been investigated. Emptive suppression of micelles formation in the presence of Pluronis P123 macromolecules was founded. Formations of mixed structures at high concentrations of polymer and surfactant have been observed, but these aggregates are destroyed by dilution.
блок-сополимер, неионный ПАВ, критическая концентрация агрегации, мицелла, block-copolymer, nonionic surfactant, critical aggregation concentration, micelle
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