Malmö University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Real and In-Silico Microgels Show Comparable Bulk Moduli Below and Above the Volume Phase Transition.
Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52074 Aachen, Germany.
Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen, Switzerland.
Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52074 Aachen, Germany.
Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52074 Aachen, Germany.
Show others and affiliations
2024 (English)In: Macromolecular rapid communications, ISSN 1022-1336, E-ISSN 1521-3927, Vol. 45, no 13, article id e2400043Article in journal (Refereed) Published
Abstract [en]

The compressibility of soft colloids influences their phase behavior and flow properties, especially in concentrated suspensions. Particle compressibility, which is proportional to the reciprocal of the bulk modulus K, is a key parameter for soft polymer-based particles that can be compressed in crowded environments. Here, microgels with different degrees of crosslinking, i.e. softness, are investigated below and above their volume phase transition temperature VPTT. By combining molecular dynamics simulations with small-angle neutron scattering with contrast variation, a change in the particle bulk moduli of two orders of magnitude is observed. The degree of crosslinking has a significant impact on the bulk modulus of the swollen microgel, while above the VPTT the values of K are almost independent of the crosslinking density. The excellent agreement between experimental results and simulations also highlight that the model microgels posses both the internal architecture and the elastic properties of real polymeric networks. This paves the way to a systematic use of simulations to investigate the behavior of dense microgel suspensions. This article is protected by copyright. All rights reserved.

Place, publisher, year, edition, pages
John Wiley & Sons, 2024. Vol. 45, no 13, article id e2400043
Keywords [en]
bulk modulus, contrast variation, microgels, molecular dynamics simulations, small‐angle scattering, soft colloids, soft matter
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:mau:diva-66944DOI: 10.1002/marc.202400043ISI: 001215317000001PubMedID: 38613338Scopus ID: 2-s2.0-85192268915OAI: oai:DiVA.org:mau-66944DiVA, id: diva2:1854737
Available from: 2024-04-26 Created: 2024-04-26 Last updated: 2024-07-30Bibliographically approved

Open Access in DiVA

fulltext(1778 kB)46 downloads
File information
File name FULLTEXT01.pdfFile size 1778 kBChecksum SHA-512
de2052c8fa9d5e1fa7b61e3c9706fadd6d0bb08ac206b1562923ee46fc23489857b58702c5e42174e55a6132c38ff14c29683a76b447fd3efec46edd595aa81f
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMedScopus

Authority records

Scotti, Andrea

Search in DiVA

By author/editor
Scotti, Andrea
By organisation
Department of Biomedical Science (BMV)
In the same journal
Macromolecular rapid communications
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 46 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 138 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf