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
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Shin Nakagawa
University of Tsukuba, Department of Materials Science, University of Tsukuba
Authors
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Shin Nakagawa
University of Tsukuba, Department of Materials Science, University of Tsukuba
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Yuta Fujisawa
The University of Tokyo
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Takuzo Aida
The University of Tokyo
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Suguru Kitani
Tokyo Institute of Technology, Materials and Structures Laboratory, Tokyo Institute of Technology
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Hitoshi Kawaji
Tokyo Institute of Technology
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Yohei Yamamoto
University of Tsukuba, Department of Materials Science, University of Tsukuba
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Tatsuya Mori
University of Tsukuba, Department of Materials Science, University of Tsukuba