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KLACIC, T. JUGL, A. PEKAŘ, M. KOVACEVIC, D.
Originální název
High-Resolution Ultrasonic Spectroscopy: Looking at the Interpolyelectrolyte Neutralization from a Different Perspective
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
In this study, the high-resolution ultrasonic spectroscopy (HR-US) technique was applied to examine interpolyelectrolyte neutralization. The mentioned method was tested on the example of complexation between poly(allylammonium) cations and poly(acrylate) anions in aqueous solutions at pH = 7. It was confirmed by HR-US that the type of titration (stepwise or abrupt), the direction of titration, and the type of background salt affect the outcome of interpolyelectrolyte neutralization. The obtained results were explained on the basis of ultrasonic velocity and attenuation changes in the context of suspension compressibility, a parameter that is extremely sensitive to molecular organization and intermolecular interactions. Moreover, the results of HR-US measurements proved to be consistent with previous results obtained by more traditional methods such as dynamic light scattering, microcalorimetry, and electrokinetics. This research demonstrates that HR-US is a convenient and reliable method that can be employed for the investigation of interpolyelectrolyte neutralization and polyelectrolyte-related processes.
Klíčová slova
POLYELECTROLYTE COMPLEX- FORMATION; AQUEOUS-SOLUTIONS; AGGREGATING SYSTEMS; PHASE-BEHAVIOR; WATER; IONS; SALT; HYALURONAN; CHLORIDE; DYNAMICS
Autoři
KLACIC, T.; JUGL, A.; PEKAŘ, M.; KOVACEVIC, D.
Vydáno
14. 2. 2023
Nakladatel
American Chemical Society
ISSN
1520-5835
Periodikum
Macromolecules
Ročník
56
Číslo
4
Stát
Spojené státy americké
Strany od
1434
Strany do
1445
Strany počet
12
URL
https://pubs.acs.org/doi/10.1021/acs.macromol.2c02349
Plný text v Digitální knihovně
http://hdl.handle.net/11012/209244
BibTex
@article{BUT183120, author="Tin {Klačić} and Adam {Jugl} and Miloslav {Pekař} and Davor {Kovačević}", title="High-Resolution Ultrasonic Spectroscopy: Looking at the Interpolyelectrolyte Neutralization from a Different Perspective", journal="Macromolecules", year="2023", volume="56", number="4", pages="1434--1445", doi="10.1021/acs.macromol.2c02349", issn="1520-5835", url="https://pubs.acs.org/doi/10.1021/acs.macromol.2c02349" }