Abstract
Several phenomena related to statistical mechanics of a single polymer chain were investigated by atomic force microscopy (AFM). A method, which is called as "nanofishing," enabled us to stretch a single polymer chain with picking it at its two modified termini. A stress-strain curve obtained for a polystyrene oligomer with thiol termini in a good solvent showed a good agreement with a worm-like chain model, and thus gave microscopic information about entropic elasticity. The further study aiming at a " nanorheological" measurement on a single polymer chain also revealed an energy dissipation processes via monomer-monomer or monomer-solvent frictions. In order to perform such dynamic measurement, a commercially available AFM was modified, which will be discussed in detail at the site.
| Original language | English |
|---|---|
| Pages | 112-114 |
| Number of pages | 3 |
| Publication status | Published - 2005 Dec 1 |
| Event | 54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: 2005 May 25 → 2005 May 27 |
Other
| Other | 54th SPSJ Annual Meeting 2005 |
|---|---|
| Country/Territory | Japan |
| City | Yokohama |
| Period | 05/5/25 → 05/5/27 |
Keywords
- Atomic force microscopy
- Energy dissipation
- Entropic Elasticity
- Nanofishing
- Single polymer chain
- Worm-like chain model
ASJC Scopus subject areas
- Engineering(all)