Publication detail

High-Resolution Ultrasonic Spectroscopy: Looking at the Interpolyelectrolyte Neutralization from a Different Perspective

KLACIC, T. JUGL, A. PEKAŘ, M. KOVACEVIC, D.

Original Title

High-Resolution Ultrasonic Spectroscopy: Looking at the Interpolyelectrolyte Neutralization from a Different Perspective

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

POLYELECTROLYTE COMPLEX- FORMATION; AQUEOUS-SOLUTIONS; AGGREGATING SYSTEMS; PHASE-BEHAVIOR; WATER; IONS; SALT; HYALURONAN; CHLORIDE; DYNAMICS

Authors

KLACIC, T.; JUGL, A.; PEKAŘ, M.; KOVACEVIC, D.

Released

14. 2. 2023

Publisher

American Chemical Society

ISBN

1520-5835

Periodical

Macromolecules

Year of study

56

Number

4

State

United States of America

Pages from

1434

Pages to

1445

Pages count

12

URL

https://pubs.acs.org/doi/10.1021/acs.macromol.2c02349

Full text in the Digital Library

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"
}