Fluctuation suppression in microgels by polymer electrolytes
Structural details of thermoresponsive, cationically poly(N-iso-propylacrylamide-co-methacrylamido propyl trimethyl ammonium chloride) microgels and the influence of the anionic electrolyte polystyrene sulfonate (PSS) on the internal structure and dynamics of the cationic microgels have been studied...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC and ACA
2020-05-01
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| Series: | Structural Dynamics |
| Online Access: | http://dx.doi.org/10.1063/4.0000014 |
| _version_ | 1818325736633663488 |
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| author | S. Pasini S. Maccarrone N. K. Székely L. R. Stingaciu A. P. H. Gelissen W. Richtering M. Monkenbusch O. Holderer |
| author_facet | S. Pasini S. Maccarrone N. K. Székely L. R. Stingaciu A. P. H. Gelissen W. Richtering M. Monkenbusch O. Holderer |
| author_sort | S. Pasini |
| collection | DOAJ |
| description | Structural details of thermoresponsive, cationically poly(N-iso-propylacrylamide-co-methacrylamido propyl trimethyl ammonium chloride) microgels and the influence of the anionic electrolyte polystyrene sulfonate (PSS) on the internal structure and dynamics of the cationic microgels have been studied with a combination of small angle neutron scattering (SANS) and neutron spin echo (NSE) spectroscopy. While SANS can yield information on the overall size of the particles and on the typical correlation length inside the particles, studying the segmental polymer dynamics with NSE gives access to more internal details, which only appear due to their effect on the polymer motion. The segmental dynamics of the microgels studied in this paper is to a large extent suppressed by the PSS additive. Possible scenarios of the influence of the polyanions on the microgel structure and dynamics are discussed. |
| first_indexed | 2024-12-13T11:49:13Z |
| format | Article |
| id | doaj.art-1e6cfcbfdf5c412d8f986b8fcd05ebde |
| institution | Directory Open Access Journal |
| issn | 2329-7778 |
| language | English |
| last_indexed | 2024-12-13T11:49:13Z |
| publishDate | 2020-05-01 |
| publisher | AIP Publishing LLC and ACA |
| record_format | Article |
| series | Structural Dynamics |
| spelling | doaj.art-1e6cfcbfdf5c412d8f986b8fcd05ebde2022-12-21T23:47:25ZengAIP Publishing LLC and ACAStructural Dynamics2329-77782020-05-0173034302034302-610.1063/4.0000014Fluctuation suppression in microgels by polymer electrolytesS. Pasini0S. Maccarrone1N. K. Székely2L. R. Stingaciu3A. P. H. Gelissen4W. Richtering5M. Monkenbusch6O. Holderer7 Forschungszentrum Jülich GmbH, JCNS at Heinz Maier-Leibnitz Zentrum, Lichtenbergstraße 1, 85747 Garching, Germany Forschungszentrum Jülich GmbH, JCNS at Heinz Maier-Leibnitz Zentrum, Lichtenbergstraße 1, 85747 Garching, Germany Forschungszentrum Jülich GmbH, JCNS at Heinz Maier-Leibnitz Zentrum, Lichtenbergstraße 1, 85747 Garching, Germany NScD, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, Germany Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen and JARA-SOFT 52056 Aachen, Germany Jülich Centre for Neutron Science (JCNS) & Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany Forschungszentrum Jülich GmbH, JCNS at Heinz Maier-Leibnitz Zentrum, Lichtenbergstraße 1, 85747 Garching, GermanyStructural details of thermoresponsive, cationically poly(N-iso-propylacrylamide-co-methacrylamido propyl trimethyl ammonium chloride) microgels and the influence of the anionic electrolyte polystyrene sulfonate (PSS) on the internal structure and dynamics of the cationic microgels have been studied with a combination of small angle neutron scattering (SANS) and neutron spin echo (NSE) spectroscopy. While SANS can yield information on the overall size of the particles and on the typical correlation length inside the particles, studying the segmental polymer dynamics with NSE gives access to more internal details, which only appear due to their effect on the polymer motion. The segmental dynamics of the microgels studied in this paper is to a large extent suppressed by the PSS additive. Possible scenarios of the influence of the polyanions on the microgel structure and dynamics are discussed.http://dx.doi.org/10.1063/4.0000014 |
| spellingShingle | S. Pasini S. Maccarrone N. K. Székely L. R. Stingaciu A. P. H. Gelissen W. Richtering M. Monkenbusch O. Holderer Fluctuation suppression in microgels by polymer electrolytes Structural Dynamics |
| title | Fluctuation suppression in microgels by polymer electrolytes |
| title_full | Fluctuation suppression in microgels by polymer electrolytes |
| title_fullStr | Fluctuation suppression in microgels by polymer electrolytes |
| title_full_unstemmed | Fluctuation suppression in microgels by polymer electrolytes |
| title_short | Fluctuation suppression in microgels by polymer electrolytes |
| title_sort | fluctuation suppression in microgels by polymer electrolytes |
| url | http://dx.doi.org/10.1063/4.0000014 |
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