Determination of the Boundary Transition Temperatures in Polypropylene on the Basis of Measurements in the Terahertz Band
- Авторы: Kitai M.S.1, Nazarov M.M.2, Nedorezova P.M.3, Shkurinov A.P.4,5
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Учреждения:
- Institute of Photon Technologies of the Federal Research Center “Crystallography and Photonics” of the Russian Academy of Sciences
- Kurchatov Institute
- N. N. Semenov Institute of Chemical Physics of the Russian Academy of Sciences
- Institute of Problems of Laser and Information Technologies of the Federal Research Center “Crystallography and Photonics” of the Russian Academy of Sciences
- M. V. Lomonosov Moscow State University
- Выпуск: Том 60, № 5 (2017)
- Страницы: 409-416
- Раздел: Article
- URL: https://ogarev-online.ru/0033-8443/article/view/243801
- DOI: https://doi.org/10.1007/s11141-017-9810-2
- ID: 243801
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Аннотация
We propose a method for determination of the boundary temperatures of transitions in the structure of polymers by means of analyzing the refractive index of these materials in the terahertz band. The temperatures of glass transition, crystallization, and melting are determined experimentally for isotactic and syndiotactic polypropylenes. Such polymers have low absorption coefficients in the terahertz band. The behavior of intermolecular oscillations of the macromolecules, which are active in polymer spectra in this frequency band, is analyzed.
Об авторах
M. Kitai
Institute of Photon Technologies of the Federal Research Center “Crystallography and Photonics” of the Russian Academy of Sciences
Автор, ответственный за переписку.
Email: mkitai@mail.ru
Россия, Troitsk
M. Nazarov
Kurchatov Institute
Email: mkitai@mail.ru
Россия, Moscow
P. Nedorezova
N. N. Semenov Institute of Chemical Physics of the Russian Academy of Sciences
Email: mkitai@mail.ru
Россия, Moscow
A. Shkurinov
Institute of Problems of Laser and Information Technologies of the Federal Research Center “Crystallography and Photonics” of the Russian Academy of Sciences; M. V. Lomonosov Moscow State University
Email: mkitai@mail.ru
Россия, Shatura; Moscow
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