Viscoelastic Properties of Polyelectrolyte Multilayers Swollen with Ionic Liquid Solutions Article Swipe
Nagma Parveen
,
Pritam Kumar Jana
,
Monika Schönhoff
·
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.3390/polym11081285
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.3390/polym11081285
Polyelectrolyte multilayers (PEM) obtained by layer-by-layer assembly can be doped with ionic liquid (IL) via the swelling of the films with IL solutions. In order to examine the mechanical properties of IL-containing PEM, we implement a Kelvin-Voigt model to obtain thickness, viscosity and elastic modulus from the frequency and dissipation shifts determined by a dissipative quartz crystal microbalance (QCM-D). We analyze the changes in the modeled thickness and viscoelasticity of PEI(PSS/PADMAC)4PSS and PEI(PSS/PAH)4PSS multilayers upon swelling by increasing the concentration of either 1-Ethyl-3-methylimidazolium chloride or 1-Hexyl-3-methylimidazolium chloride, which are water soluble ILs. The results show that the thickness of the multilayers changes monotonically up to a certain IL concentration, whereas the viscosity and elasticity change in a non-monotonic fashion with an increasing IL concentration. The changes in the modeled parameters can be divided into three concentration regimes of IL, a behavior specific to ILs (organic salts), which does not occur with swelling by simple inorganic salts such as NaCl. The existence of the regimes is attributed to a competition of the hydrophobic interactions of large hydrophobic ions, which enhance the layer stability at a low salt content, with the electrostatic screening, which dominates at a higher salt content and causes a film softening.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/polym11081285
- https://www.mdpi.com/2073-4360/11/8/1285/pdf?version=1564712048
- OA Status
- gold
- Cited By
- 25
- References
- 46
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2966403616
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2966403616Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/polym11081285Digital Object Identifier
- Title
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Viscoelastic Properties of Polyelectrolyte Multilayers Swollen with Ionic Liquid SolutionsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2019Year of publication
- Publication date
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2019-08-01Full publication date if available
- Authors
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Nagma Parveen, Pritam Kumar Jana, Monika SchönhoffList of authors in order
- Landing page
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https://doi.org/10.3390/polym11081285Publisher landing page
- PDF URL
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https://www.mdpi.com/2073-4360/11/8/1285/pdf?version=1564712048Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2073-4360/11/8/1285/pdf?version=1564712048Direct OA link when available
- Concepts
-
Quartz crystal microbalance, Polyelectrolyte, Viscoelasticity, Swelling, Ionic liquid, Materials science, Chemical engineering, Viscosity, Softening, Elastic modulus, Chloride, Polymer, Composite material, Chemistry, Organic chemistry, Adsorption, Engineering, Catalysis, MetallurgyTop concepts (fields/topics) attached by OpenAlex
- Cited by
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25Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 4, 2024: 4, 2023: 6, 2022: 6, 2021: 3Per-year citation counts (last 5 years)
- References (count)
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46Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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