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
Local Wear of Catechol-Containing Diblock Copolymer Layers: Wear Volume, Stick–Slip, and Nanomechanical Changes
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-6877-9282
Institute of Chemistry, Vilnius University, LT-03225 Vilnius, Lithuania.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea.ORCID iD: 0000-0003-1542-6170
Institute of Chemistry, Vilnius University, LT-03225 Vilnius, Lithuania.
Show others and affiliations
2021 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 125, no 38, p. 21277-21292Article in journal (Refereed) Published
Abstract [en]

Polymers containing catechol groups have gained a large interest, as they mimic an essential feature of mussel adhesive proteins that allow strong binding to a large variety of surfaces under water. This feature has made this class of polymers interesting for surface modification purposes, as layer functionalities can be introduced by a simple adsorption process, where the catechol groups should provide a strong anchoring to the surface. In this work, we utilize an AFM-based method to evaluate the wear resistance of such polymer layers in water and compare it with that offered by electrostatically driven adsorption. We pay particular attention to two block copolymer systems where the anchoring group in one case is an uncharged catechol-containing block and in the other case a positively charged and catechol-containing block. The wear resistance is evaluated in terms of wear volume, and here, we compare with data for similar copolymers with statistical distribution of the catechol groups. Monitoring of nanomechanical properties provides an alternative way of illustrating the effect of wear, and we use modeling to show that the stiffness, as probed by an AFM tip, of the soft layer residing on a hard substrate increases as the thickness of the layer decreases. The stick–slip characteristics are also evaluated.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2021. Vol. 125, no 38, p. 21277-21292
National Category
Physical Chemistry
Research subject
Experimental Physics; Applied Physics
Identifiers
URN: urn:nbn:se:ltu:diva-87536DOI: 10.1021/acs.jpcc.1c06859ISI: 000704295900056Scopus ID: 2-s2.0-85116679792OAI: oai:DiVA.org:ltu-87536DiVA, id: diva2:1603834
Note

Validerad;2021;Nivå 2;2021-10-18 (beamah);

Forskningsfinansiär: National Natural Science Foundation of China (21902098)

Available from: 2021-10-18 Created: 2021-10-18 Last updated: 2021-10-18Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Dobryden, IlliaHedman, Daniel

Search in DiVA

By author/editor
Dobryden, IlliaHedman, Daniel
By organisation
Material Science
In the same journal
The Journal of Physical Chemistry C
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 131 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