Abstract
A technique based on atomic force microscopy (AFM) for dynamic measurement of mechanical properties of a single polymer chain was proposed. AFM. cantilever was mechanically oscillated at approximately 10 kHz during stretching process. By this technique, we could quantitatively estimate elongation-dependent changes of stiffness and viscosity of a single chain itself with using a phenomenological model. The solvent effect on the viscosity in low extension regions was investigated. It was ensured that the viscosity under 10 kHz perturbation was attributed to monomer - solvent friction. Viscosity quantization corresponding to consecutive detachments of polymer chains was also observed.
Original language | English |
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Pages (from-to) | 5921-5925 |
Number of pages | 5 |
Journal | Macromolecules |
Volume | 39 |
Issue number | 17 |
DOIs | |
Publication status | Published - 2006 Aug 22 |
Externally published | Yes |
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry