at Google ScholarTitle data
Geitner, Robert ; Legesse, Fisseha-Bekele ; Kuhl, Natascha ; Bocklitz, Thomas ; Zechel, Stefan ; Vitz, Jürgen ; Hager, Martin ; Schubert, Ulrich S. ; Dietzek, Benjamin ; Schmitt, Michael ; Popp, Jürgen:
Do you get what you see? Understanding molecular self-healing.
In: Chemistry : a European Journal.
Vol. 24
(2018)
Issue 10
.
- pp. 2493-2502.
ISSN 1521-3765
DOI: https://doi.org/10.1002/chem.201705836
Abstract in another language
The self-healing ability of self-healing materials is often analyzed via morphologic microscopy images. Here it was possible to show that morphologic information alone is not sufficient to judge the status of a self-healing process and molecular information is required as well. When comparing molecular coherent anti-Stokes Raman scattering (CARS) and morphological laser reflection images during a standard scratch healing test of an intrinsic self-healing polymer network it was found that the morphologic closing of the scratch and the molecular crosslinking of the material do not take place simultaneously. This important observation can be explained by the fact that the self-healing process of the thiol-ene based polymer network is limited by the mobility of alkene-containing compounds, which can only be monitored by molecular CARS microscopy and not via standard morphological imaging. Additionally, the recorded CARS images indicate a mechano-chemical activation of the self-healing material by the scratching/damaging process, which leads to an enhanced self-healing behavior in the vicinity of the scratch.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | CARS; kinetics; Polymers; Raman spectroscopy; Self-Healing |
| Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Computer Science > Lehrstuhl Künstliche Intelligenz in der Mikroskopie und Spektroskopie > Lehrstuhl Künstliche Intelligenz in der Mikroskopie und Spektroskopie - Univ.-Prof. Dr. Thomas Wilhelm Bocklitz |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 530 Physics |
| Date Deposited: | 17 May 2023 13:37 |
| Last Modified: | 17 May 2023 13:37 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/76310 |