Gast ::
| Hauptseite > Publikationsdatenbank > Solvent-induced immiscibility of polymer brushes eliminates dissipation channels |
| Hauptseite > Publikationsdatenbank > Solvent-induced immiscibility of polymer brushes eliminates dissipation channels |
| Journal Article | FZJ-2014-06821 |
; ; ; ;
2014
Nature Publishing Group
London
This record in other databases: 
Please use a persistent id in citations: http://hdl.handle.net/2128/24469 doi:10.1038/ncomms4781
Abstract: Polymer brushes lead to small friction and wear and thus hold great potential for industrial applications. However, interdigitation of opposing brushes makes them prone to damage. Here we report molecular dynamics simulations revealing that immiscible brush systems can form slick interfaces, in which interdigitation is eliminated and dissipation strongly reduced. We test our findings with friction force microscopy experiments on hydrophilic and hydrophobic brush systems in both symmetric and asymmetric setups. In the symmetric setup both brushes are chemically alike, while the asymmetric system consists of two different brushes that each prefer their own solvent. The trends observed in the experimentally measured force traces and the friction reduction are similar to the simulations and extend to fully immersed contacts. These results reveal that two immiscible brush systems in mechanical contact slide at a fluid–fluid interface while having load-bearing ability. This makes them ideal candidates for tribological applications.
; 
; BIOSIS Previews ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 10 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record
|
The record appears in these collections: |
PDF
Fulltext by OpenAccess repository