Ionic strength effect in the equilibrium and rheological behavior of an amphiphilic triblock copolymer at the air/solution interface
| dc.contributor.author | Carbone, Carlo | |
| dc.contributor.author | Guzmán Solís, Eduardo | |
| dc.contributor.author | Maldonado-Valderrama, Julia | |
| dc.contributor.author | González Rubio, Ramón | |
| dc.contributor.author | Ortega Gómez, Francisco | |
| dc.date.accessioned | 2024-03-06T09:06:28Z | |
| dc.date.available | 2024-03-06T09:06:28Z | |
| dc.date.issued | 2024-03-01 | |
| dc.description.abstract | This study investigates the effect of an inert salt (NaCl) on the equilibrium interfacial tension and dilatational modulus of Pluronic F-68 copolymer, a triblock copolymer consisting of two terminal blocks of poly(ethylene oxide) and a less hydrophilic central block of poly(propylene oxide). Interfacial tension measurements were carried out using a surface force balance and a drop shape tensiometer, while rheological measurements were carried out in two different frequency ranges. This involved the use of the oscillatory barrier/droplet method and electrocapillary wave measurements, complemented by an appropriate theoretical framework. This work aimed to elucidate the influence of NaCl on the interfacial behavior of Gibbs monolayers of Pluronic F-68. In addition, this study highlights some of the technical and theoretical limitations associated with obtaining reliable dilatational rheological data at high frequencies (<1 kHz) using electrocapillary wave measurements. The results provide valuable insights into the interplay between salt presence and interfacial properties of Pluronic F-68 and highlight the challenges of obtaining accurate dilatational rheological data under specific measurement conditions. | |
| dc.description.department | Depto. de Química Física | |
| dc.description.faculty | Fac. de Ciencias Químicas | |
| dc.description.faculty | Instituto Pluridisciplinar (IP) | |
| dc.description.refereed | TRUE | |
| dc.description.status | pub | |
| dc.identifier.doi | 10.3390/colloids8020016 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/101988 | |
| dc.journal.title | Colloids and Interface | |
| dc.language.iso | eng | |
| dc.page.initial | 15 | |
| dc.publisher | MDPI | |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | en |
| dc.rights.accessRights | open access | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject.cdu | 544 | |
| dc.subject.ucm | Química física (Química) | |
| dc.subject.unesco | 2307 Química Física | |
| dc.title | Ionic strength effect in the equilibrium and rheological behavior of an amphiphilic triblock copolymer at the air/solution interface | |
| dc.type | journal article | |
| dc.volume.number | 8 | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 1c814fdd-290e-4655-a40b-d4b1f664740d | |
| relation.isAuthorOfPublication | 8461433f-f4e7-40b0-9549-b14c34817028 | |
| relation.isAuthorOfPublication | ffe9a2c2-caca-446f-a49e-14cacb7984df | |
| relation.isAuthorOfPublication | 868be429-b538-45d8-a4c1-e1fac224c804 | |
| relation.isAuthorOfPublication.latestForDiscovery | 1c814fdd-290e-4655-a40b-d4b1f664740d |
Download
Original bundle
1 - 1 of 1
