Relaxation processes in the oriented polyvinylidene fluoride films with various crystalline phase composition

Relaxation processes in the oriented polyvinylidene fluoride films with various crystalline phase composition | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Relaxation processes in the oriented polyvinylidene fluoride films with various crystalline phase composition Dmitrii Gerasimov, Natalia Nikonorova, Ivan Kuryndin, Viktor Lavrentyev, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4557441/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 26 Oct, 2024 Read the published version in Journal of Polymer Research → Version 1 posted 5 You are reading this latest preprint version Abstract Oriented polyvinylidene fluoride (PVDF) films were obtained in multistage process based on melt extrusion of polymer. We investigated the results of the polymorphic α→β crystalline phase transformation in the PVDF films subjected to uniaxial stretching. During uniaxial extension both appearance of a polar piezo active crystalline structure and significant changes in the samples morphology were observed. Variations in the PVDF films morphology, polymorphic composition, and supramolecular structure upon transformation were detected with wide-angle X-ray scattering and scanning electron microscopy techniques. Broadband dielectric spectroscopy was used to ascertain a change in molecular mobility of the polymer chains during α→β phase transformation. The relaxation processes, γ-, α а -, α с -, and interfacial polarization, in both α- and β-phases of PVDF were identified in the dielectric loss spectra and described with either Arrhenius or Vogel-Fulcher-Tammann equations. The analysis of the equations parameters allowed concluding that that initiation of a polymorphic α→β transition through uniaxial extension results in hindering of the relaxators mobility in the β-phase of PVDF samples, except γ-relaxators. This finding confirms a proposal that γ-relaxators are located in the amorphous part of PVDF. Uniaxial extension resulted in a substantial increase in the interfacial polarization, which can be attributed to the emergence of new interface boundaries. Polyvinylidene fluoride Structure Relaxation Dielectric properties Full Text Cite Share Download PDF Status: Published Journal Publication published 26 Oct, 2024 Read the published version in Journal of Polymer Research → Version 1 posted Reviewers agreed at journal 12 Jul, 2024 Reviewers invited by journal 12 Jun, 2024 Editor invited by journal 11 Jun, 2024 Editor assigned by journal 10 Jun, 2024 First submitted to journal 10 Jun, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4557441","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":313384680,"identity":"cc3b03bd-ada0-45c6-a362-49c6022bafd1","order_by":0,"name":"Dmitrii Gerasimov","email":"","orcid":"","institution":"","correspondingAuthor":false,"prefix":"","firstName":"Dmitrii","middleName":"","lastName":"Gerasimov","suffix":""},{"id":313384681,"identity":"338d9d07-3100-4f07-a842-769ed05a8682","order_by":1,"name":"Natalia Nikonorova","email":"","orcid":"","institution":"","correspondingAuthor":false,"prefix":"","firstName":"Natalia","middleName":"","lastName":"Nikonorova","suffix":""},{"id":313384682,"identity":"e774edc4-c457-4ea3-bf59-a87414a575b9","order_by":2,"name":"Ivan Kuryndin","email":"","orcid":"","institution":"","correspondingAuthor":false,"prefix":"","firstName":"Ivan","middleName":"","lastName":"Kuryndin","suffix":""},{"id":313384683,"identity":"641b23b9-fe8d-4971-9e83-caeecd03605f","order_by":3,"name":"Viktor Lavrentyev","email":"","orcid":"","institution":"","correspondingAuthor":false,"prefix":"","firstName":"Viktor","middleName":"","lastName":"Lavrentyev","suffix":""},{"id":313384684,"identity":"f83f9a21-6e6b-48ce-a4f6-e1c3005d3b91","order_by":4,"name":"Sergei Bronnikov","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABDElEQVRIiWNgGAWjYNACA4YEMJ1wgIGBn4GBjUQtkg1EaWGAamEAajE4QECLfHvv4xcfChjyzNt7jz14cMYmcfON5GcPPlQwyPOLHcDupDPHzSxnGDAUy5w5l26QcCMtcduNNHPDGWcYDGfOTsCuRSKNzZjHgCFxhkSOmUTCh8PGZjcSzKR52xgSDG5j1yI//xmb8R9kLcYz0r/h1cJwg435MQNcy43DcgZABl4tBmfS2Bh7gH6R4DkD1HImTU7izJsyyRlnJHD6Rb79GPOHH38Y8iTYe8wkfxyz4eFvT98m8aHCRp5fGofDgHEtwcDwH4kvAFYpgUs5CDB/QOXzH8CnehSMglEwCkYgAAA/glw8+WY8ogAAAABJRU5ErkJggg==","orcid":"https://orcid.org/0000-0002-2361-9784","institution":"","correspondingAuthor":true,"prefix":"","firstName":"Sergei","middleName":"","lastName":"Bronnikov","suffix":""}],"badges":[],"createdAt":"2024-06-10 10:34:11","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4557441/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4557441/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s10965-024-04154-6","type":"published","date":"2024-10-26T15:57:32+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":67681868,"identity":"28c8b922-97f2-4ff9-8486-3eb7bec196f8","added_by":"auto","created_at":"2024-10-28 16:10:35","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1342661,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript21full.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4557441/v1_covered_5cc028d3-31ad-48f3-934e-7866411baace.pdf"}],"financialInterests":"","formattedTitle":"Relaxation processes in the oriented polyvinylidene fluoride films with various crystalline phase composition","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"journal-of-polymer-research","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"jpol","sideBox":"Learn more about [Journal of Polymer Research](https://www.springer.com/journal/10965)","snPcode":"10965","submissionUrl":"https://www.editorialmanager.com/jpol/","title":"Journal of Polymer Research","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Polyvinylidene fluoride, Structure, Relaxation, Dielectric properties","lastPublishedDoi":"10.21203/rs.3.rs-4557441/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4557441/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eOriented polyvinylidene fluoride (PVDF) films were obtained in multistage process based on melt extrusion of polymer. We investigated the results of the polymorphic α\u0026rarr;β crystalline phase transformation in the PVDF films subjected to uniaxial stretching. During uniaxial extension both appearance of a polar piezo active crystalline structure and significant changes in the samples morphology were observed. Variations in the PVDF films morphology, polymorphic composition, and supramolecular structure upon transformation were detected with wide-angle X-ray scattering and scanning electron microscopy techniques. Broadband dielectric spectroscopy was used to ascertain a change in molecular mobility of the polymer chains during α\u0026rarr;β phase transformation. The relaxation processes, γ-, α\u003csub\u003eа\u003c/sub\u003e-, α\u003csub\u003eс\u003c/sub\u003e-, and interfacial polarization, in both α- and β-phases of PVDF were identified in the dielectric loss spectra and described with either Arrhenius or Vogel-Fulcher-Tammann equations. 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