Fluctuation suppression in microgels by polymer electrolytes.
Journal
Structural dynamics (Melville, N.Y.)
ISSN: 2329-7778
Titre abrégé: Struct Dyn
Pays: United States
ID NLM: 101660872
Informations de publication
Date de publication:
May 2020
May 2020
Historique:
received:
24
03
2020
accepted:
18
05
2020
entrez:
23
6
2020
pubmed:
23
6
2020
medline:
23
6
2020
Statut:
epublish
Résumé
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.
Identifiants
pubmed: 32566697
doi: 10.1063/4.0000014
pii: 4.0000014
pmc: PMC7297544
doi:
Types de publication
Journal Article
Langues
eng
Pagination
034302Informations de copyright
© 2020 Author(s).
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