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How strong are strong poly(sulfonic acids)? An example of the poly(2-acrylamido-2-methyl-1-propanesulfonic acid)
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SYSNO ASEP 0452117 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title How strong are strong poly(sulfonic acids)? An example of the poly(2-acrylamido-2-methyl-1-propanesulfonic acid) Author(s) Gospodinova, Natalia (UMCH-V) RID
Tomšík, Elena (UMCH-V) RID, ORCID
Omelchenko, Olga (UMCH-V)Source Title European Polymer Journal. - : Elsevier - ISSN 0014-3057
Roč. 74, January (2016), s. 130-135Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords polyelectrolytes ; strong poly(acids) ; proton conductors Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA15-14791S GA ČR - Czech Science Foundation (CSF) Institutional support UMCH-V - RVO:61389013 UT WOS 000369204100013 EID SCOPUS 84951831647 DOI 10.1016/j.eurpolymj.2015.11.025 Annotation Despite the significant interest in poly(sulfonic acids) as proton conductors and acid catalysts, their dissociation behavior is poorly studied. The influence of the polyelectrolyte effect on the dissociation of the strong poly(acid) is frequently neglected. Moreover, the decrease in distance between the sulfonic groups is thought to enhance the acid strength or charge carrier concentration. Using simple and reliable methods (pH measurements and potentiometric titration), it is demonstrated that a strong poly(sulfonic acid) such as poly(2-acrylamido-2-methyl-1-propanesulfonic acid) displays a “limited” (predicted by the Manning-Oosawa theory) degree of dissociation in a salt-free solution and “maximal” degree of dissociation equivalent to the monomer analog in the presence of NaCl excess. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2016
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