Boson peak of self-healable polymers: terahertz time-domain spectroscopy and low-temperature specific heat measurement

POSTER

Abstract

We investigated the vibrational density of states (VDOS) of self-healable polymers in the terahertz region by terahertz time-domain spectroscopy and low-temperature specific heat measurement. The VDOS determined from the low temperature specific heat measurements showed the boson peak (BP) at about 0.6 THz. The BP in the absorption coefficient (α(ν)) also appeared in α/ν2 plot. Regarding the determinant of the BP frequency of the system of self-healable polymers, it is located between hydrogen-bonded glasses and van der Waals glasses.

Presenters

  • Shin Nakagawa

    • University of Tsukuba
    • Department of Materials Science, University of Tsukuba

Authors

  • Shin Nakagawa

    • University of Tsukuba
    • Department of Materials Science, University of Tsukuba

  • Yuta Fujisawa

    • The University of Tokyo

  • Takuzo Aida

    • The University of Tokyo

  • Suguru Kitani

    • Tokyo Institute of Technology
    • Materials and Structures Laboratory, Tokyo Institute of Technology

  • Hitoshi Kawaji

    • Tokyo Institute of Technology

  • Yohei Yamamoto

    • University of Tsukuba
    • Department of Materials Science, University of Tsukuba

  • Tatsuya Mori

    • University of Tsukuba
    • Department of Materials Science, University of Tsukuba