Nanorheological Analysis of Polymer Surfaces by Atomic Force Microscopy
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- Nukaga Hideyuki
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Fujinami So
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Watabe Hiroyuki
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Nakajima Ken
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Nishi Toshio
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology
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Abstract
Surfaces of polymer blends were investigated using atomic force microscopy (AFM) to study their nanomechanical properties (nanorheology). We were particularly interested in information obtained from force-distance curve methods on rubbery or melt state samples. In order to realize clear comparison, a rubbery sample, polyisobutylene (PIB), was blended with a glassy-state sample, polystyrene (PS). When PS/PIB blends were observed in contact-mode operation, PIB-rich phases appeared as depressions. However, this was an artifact caused by the very low elastic modulus of PIB. By analyzing the force-distance curve, sample deformation by the force exerted was estimated together with real height free from sample deformation. Thus, if force-distance curve measurements are performed on every point of the sample (force-volume measurements), we can reconstruct a “real height image” and a “sample deformation image.” The apparent depressions became almost flat in the “real height image” by this analysis. With further analysis using Hertz theory, an elastic modulus image of the sample was also obtained, which correlated more closely with the “real height image” than with the“apparent height image.”
Journal
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 44 (7B), 5425-5429, 2005
The Japan Society of Applied Physics
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Details 詳細情報について
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- CRID
- 1390001206265743360
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- NII Article ID
- 10016677033
- 30021866780
- 130004534422
- 210000058458
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- NII Book ID
- AA10457675
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- ISSN
- 13474065
- 00214922
- http://id.crossref.org/issn/00214922
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- NDL BIB ID
- 7378416
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed