Ionic Strength Effect in the Equilibrium and Rheological Behavior of an Amphiphilic Triblock Copolymer at the Air/Solution Interface DOI Creative Commons

Carlo Carbone,

Eduardo Guzmán, Julia Maldonado‐Valderrama

и другие.

Colloids and Interfaces, Год журнала: 2024, Номер 8(2), С. 16 - 16

Опубликована: Март 1, 2024

This study investigates the effect of an inert salt (NaCl) on equilibrium interfacial tension and dilatational modulus Pluronic F-68 copolymer, a triblock copolymer consisting two terminal blocks poly(ethylene oxide) less hydrophilic central block poly(propylene oxide). Interfacial measurements were carried out using surface force balance drop shape tensiometer, while rheological in different frequency ranges. involved use oscillatory barrier/droplet method electrocapillary wave measurements, complemented by appropriate theoretical framework. work aimed to elucidate influence NaCl behavior Gibbs monolayers F-68. In addition, this highlights some technical limitations associated with obtaining reliable data at high frequencies (<1 kHz) measurements. The results provide valuable insights into interplay between presence properties highlight challenges accurate under specific measurement conditions.

Язык: Английский

Ionic Strength Effect in the Equilibrium and Rheological Behavior of an Amphiphilic Triblock Copolymer at the Air/Solution Interface DOI Creative Commons

Carlo Carbone,

Eduardo Guzmán, Julia Maldonado‐Valderrama

и другие.

Colloids and Interfaces, Год журнала: 2024, Номер 8(2), С. 16 - 16

Опубликована: Март 1, 2024

This study investigates the effect of an inert salt (NaCl) on equilibrium interfacial tension and dilatational modulus Pluronic F-68 copolymer, a triblock copolymer consisting two terminal blocks poly(ethylene oxide) less hydrophilic central block poly(propylene oxide). Interfacial measurements were carried out using surface force balance drop shape tensiometer, while rheological in different frequency ranges. involved use oscillatory barrier/droplet method electrocapillary wave measurements, complemented by appropriate theoretical framework. work aimed to elucidate influence NaCl behavior Gibbs monolayers F-68. In addition, this highlights some technical limitations associated with obtaining reliable data at high frequencies (<1 kHz) measurements. The results provide valuable insights into interplay between presence properties highlight challenges accurate under specific measurement conditions.

Язык: Английский

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