Nanorheology measurement on a single polymer chain

Yasuhiro Sakai, Takayuki Ikehara, Toshio Nishi, Ken Nakajima, Masahiko Hara

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)


    The mechanical properties of a single chain of a synthesized polystyrene were measured by atomic force microscopy (AFM). In the conventional force-distance curve measurement, the stress-strain behavior of a chain was obtained. We also measured the dynamic sinusoidal response, as in macroscopic rheological studies, repeatedly at several extension lengths before full stretching or rupturing, by a "nanorheology AFM" that we constructed. It enabled us to design any required movements on a z-piezoelectric scanner, especially sinusoidal movements. The rheological properties of a single polymer chain were discussed from the frequency-dependent measurement.

    Original languageEnglish
    Pages (from-to)724-726
    Number of pages3
    JournalApplied Physics Letters
    Issue number4
    Publication statusPublished - 2002 Jul 22

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)


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