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Article: Acoustic and relaxation behaviors of polydimethylsiloxane studied by using brillouin and dielectric spectroscopies

TitleAcoustic and relaxation behaviors of polydimethylsiloxane studied by using brillouin and dielectric spectroscopies
Authors
KeywordsPDMS
Relaxation process
Dielectric
Brillouin scattering
Elastic property
Issue Date2016
Citation
Journal of the Korean Physical Society, 2016, v. 68, n. 7, p. 896-900 How to Cite?
Abstract© 2016, The Korean Physical Society. The temperature dependences of the acoustic properties and the dielectric relaxation times of polydimethylsiloxane were investigated by using high-resolution Brillouin and broadband dielectric spectroscopies. The longitudinal sound velocity showed a large increase upon approaching the glass transition temperature while the acoustic absorption coefficient exhibited a maximum at ~263 K. Comparison of these results with previous ultrasonic data revealed a substantial frequency dispersion of the acoustic properties of this silicone-based elastomer. The relaxation times derived from the acoustic absorption peaks were consistent with the temperature dependence of the dielectric relaxation time of the structural a process, indicating a strong coupling between the acoustic waves and the segmental motions of the main chains.
Persistent Identifierhttp://hdl.handle.net/10722/273555
ISSN
2023 Impact Factor: 0.8
2023 SCImago Journal Rankings: 0.213
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLee, Byoung Wan-
dc.contributor.authorKo, Jae Hyeon-
dc.contributor.authorPark, Jaehoon-
dc.contributor.authorShin, Dong Myeong-
dc.contributor.authorHwang, Yoon Hwae-
dc.date.accessioned2019-08-12T09:55:55Z-
dc.date.available2019-08-12T09:55:55Z-
dc.date.issued2016-
dc.identifier.citationJournal of the Korean Physical Society, 2016, v. 68, n. 7, p. 896-900-
dc.identifier.issn0374-4884-
dc.identifier.urihttp://hdl.handle.net/10722/273555-
dc.description.abstract© 2016, The Korean Physical Society. The temperature dependences of the acoustic properties and the dielectric relaxation times of polydimethylsiloxane were investigated by using high-resolution Brillouin and broadband dielectric spectroscopies. The longitudinal sound velocity showed a large increase upon approaching the glass transition temperature while the acoustic absorption coefficient exhibited a maximum at ~263 K. Comparison of these results with previous ultrasonic data revealed a substantial frequency dispersion of the acoustic properties of this silicone-based elastomer. The relaxation times derived from the acoustic absorption peaks were consistent with the temperature dependence of the dielectric relaxation time of the structural a process, indicating a strong coupling between the acoustic waves and the segmental motions of the main chains.-
dc.languageeng-
dc.relation.ispartofJournal of the Korean Physical Society-
dc.subjectPDMS-
dc.subjectRelaxation process-
dc.subjectDielectric-
dc.subjectBrillouin scattering-
dc.subjectElastic property-
dc.titleAcoustic and relaxation behaviors of polydimethylsiloxane studied by using brillouin and dielectric spectroscopies-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3938/jkps.68.896-
dc.identifier.scopuseid_2-s2.0-84962909838-
dc.identifier.volume68-
dc.identifier.issue7-
dc.identifier.spage896-
dc.identifier.epage900-
dc.identifier.eissn1976-8524-
dc.identifier.isiWOS:000374159100011-
dc.identifier.issnl0374-4884-

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