Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scattering
A synchrotron-radiation-based quasi-elastic γ-ray scattering system has been developed that uses time-domain interferometry to observe microscopic polymer dynamics under uniaxial deformation. The stress-producing mechanism of crosslinked polybutadiene has been studied from a microscopic viewpoint. I...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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International Union of Crystallography
2022-09-01
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| Series: | Journal of Synchrotron Radiation |
| Subjects: | |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S1600577522007998 |
| _version_ | 1811262186790584320 |
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| author | Ryo Mashita Makina Saito Yoshitaka Yoda Hiroyuki Kishimoto Makoto Seto Toshiji Kanaya |
| author_facet | Ryo Mashita Makina Saito Yoshitaka Yoda Hiroyuki Kishimoto Makoto Seto Toshiji Kanaya |
| author_sort | Ryo Mashita |
| collection | DOAJ |
| description | A synchrotron-radiation-based quasi-elastic γ-ray scattering system has been developed that uses time-domain interferometry to observe microscopic polymer dynamics under uniaxial deformation. The stress-producing mechanism of crosslinked polybutadiene has been studied from a microscopic viewpoint. It was found that the mean relaxation time 〈τ〉 of the microscopic polymer motion observed over a relatively high temperature (T) range (i.e. T−1 < 0.0045 K−1) increased with elongation on both the intra- and intermolecular scales. Following an extensive strain dependence study, it was found that the strain dependences of both the intra- and intermolecular 〈τ〉 changed with the stress dependence. It was therefore suggested that 〈τ〉 increased due to the constraint of the local polymer chain motion caused by elongation. The local molecular dynamics of polymer chains under uniaxial deformation could be evaluated at intra- and intermolecular scales separately for the first time using our method. |
| first_indexed | 2024-04-12T19:20:40Z |
| format | Article |
| id | doaj.art-8f6846af1e3b44fb97635c0774cbf827 |
| institution | Directory Open Access Journal |
| issn | 1600-5775 |
| language | English |
| last_indexed | 2024-04-12T19:20:40Z |
| publishDate | 2022-09-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Journal of Synchrotron Radiation |
| spelling | doaj.art-8f6846af1e3b44fb97635c0774cbf8272022-12-22T03:19:36ZengInternational Union of CrystallographyJournal of Synchrotron Radiation1600-57752022-09-012951180118610.1107/S1600577522007998ju5046Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scatteringRyo Mashita0Makina Saito1Yoshitaka Yoda2Hiroyuki Kishimoto3Makoto Seto4Toshiji Kanaya5Chemical Analysis Center, Sumitomo Rubber Industries Ltd, Tsutsui-cho, Chuo-ku, Kobe, Hyogo 651-0071, JapanDepartment of Physics, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, JapanJapan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, JapanChemical Analysis Center, Sumitomo Rubber Industries Ltd, Tsutsui-cho, Chuo-ku, Kobe, Hyogo 651-0071, JapanInstitute for Integrated Radiation and Nuclear Science, Kyoto University, Sennan, Osaka 590-0494, JapanKyoto University, JapanA synchrotron-radiation-based quasi-elastic γ-ray scattering system has been developed that uses time-domain interferometry to observe microscopic polymer dynamics under uniaxial deformation. The stress-producing mechanism of crosslinked polybutadiene has been studied from a microscopic viewpoint. It was found that the mean relaxation time 〈τ〉 of the microscopic polymer motion observed over a relatively high temperature (T) range (i.e. T−1 < 0.0045 K−1) increased with elongation on both the intra- and intermolecular scales. Following an extensive strain dependence study, it was found that the strain dependences of both the intra- and intermolecular 〈τ〉 changed with the stress dependence. It was therefore suggested that 〈τ〉 increased due to the constraint of the local polymer chain motion caused by elongation. The local molecular dynamics of polymer chains under uniaxial deformation could be evaluated at intra- and intermolecular scales separately for the first time using our method.http://scripts.iucr.org/cgi-bin/paper?S1600577522007998polymer dynamicsquasi-elastic γ-ray scatteringelongation |
| spellingShingle | Ryo Mashita Makina Saito Yoshitaka Yoda Hiroyuki Kishimoto Makoto Seto Toshiji Kanaya Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scattering Journal of Synchrotron Radiation polymer dynamics quasi-elastic γ-ray scattering elongation |
| title | Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scattering |
| title_full | Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scattering |
| title_fullStr | Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scattering |
| title_full_unstemmed | Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scattering |
| title_short | Microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi-elastic γ-ray scattering |
| title_sort | microscopic observation of the effects of elongation on the polymer chain dynamics of crosslinked polybutadiene using quasi elastic γ ray scattering |
| topic | polymer dynamics quasi-elastic γ-ray scattering elongation |
| url | http://scripts.iucr.org/cgi-bin/paper?S1600577522007998 |
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