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Article

Interactions between an Associative Amphiphilic Block Polyelectrolyte and Surfactants in Water: Effect of Charge Type on Solution Properties and Aggregation

Department of Chemical Engineering, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Academic Editor: Eduardo Guzmán
Polymers 2021, 13(11), 1729; https://doi.org/10.3390/polym13111729
Received: 12 May 2021 / Revised: 21 May 2021 / Accepted: 22 May 2021 / Published: 25 May 2021
(This article belongs to the Special Issue Synthesis, Properties and Applications of Amphiphilic Polymers)
The study of interactions between polyelectrolytes (PE) and surfactants is of great interest for both fundamental and applied research. These mixtures can represent, for example, models of self-assembly and molecular organization in biological systems, but they are also relevant in industrial applications. Amphiphilic block polyelectrolytes represent an interesting class of PE, but their interactions with surfactants have not been extensively explored so far, most studies being restricted to non-associating PE. In this work, interactions between an anionic amphiphilic triblock polyelectrolyte and different types of surfactants bearing respectively negative, positive and no charge, are investigated via surface tension and solution rheology measurements for the first time. It is evidenced that the surfactants have different effects on viscosity and surface tension, depending on their charge type. Micellization of the surfactant is affected by the presence of the polymer in all cases; shear viscosity of polymer solutions decreases in presence of the same charge or nonionic surfactants, while the opposite charge surfactant causes precipitation. This study highlights the importance of the charge type, and the role of the associating hydrophobic block in the PE structure, on the solution behavior of the mixtures. Moreover, a possible interaction model is proposed, based on the obtained data. View Full-Text
Keywords: amphiphilic block copolymers; polyelectrolytes; surfactants; polyelectrolyte-surfactant complexes; rheology; surface activity amphiphilic block copolymers; polyelectrolytes; surfactants; polyelectrolyte-surfactant complexes; rheology; surface activity
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MDPI and ACS Style

Raffa, P. Interactions between an Associative Amphiphilic Block Polyelectrolyte and Surfactants in Water: Effect of Charge Type on Solution Properties and Aggregation. Polymers 2021, 13, 1729. https://doi.org/10.3390/polym13111729

AMA Style

Raffa P. Interactions between an Associative Amphiphilic Block Polyelectrolyte and Surfactants in Water: Effect of Charge Type on Solution Properties and Aggregation. Polymers. 2021; 13(11):1729. https://doi.org/10.3390/polym13111729

Chicago/Turabian Style

Raffa, Patrizio. 2021. "Interactions between an Associative Amphiphilic Block Polyelectrolyte and Surfactants in Water: Effect of Charge Type on Solution Properties and Aggregation" Polymers 13, no. 11: 1729. https://doi.org/10.3390/polym13111729

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