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dc.contributor.author | Maceiras, A. | es_ES |
dc.contributor.author | Costa, C. M. | es_ES |
dc.contributor.author | Lopes, A. C. | es_ES |
dc.contributor.author | San Sebastián, M. | es_ES |
dc.contributor.author | Laza, J. M. | es_ES |
dc.contributor.author | Vilas, J. L. | es_ES |
dc.contributor.author | Gómez Ribelles, José Luís | es_ES |
dc.contributor.author | Sabater i Serra, Roser | es_ES |
dc.contributor.author | Andrio Balado, A. | es_ES |
dc.contributor.author | Lanceros-Méndez, S. | es_ES |
dc.contributor.author | León, L. M. | es_ES |
dc.date.accessioned | 2020-10-22T03:31:58Z | |
dc.date.available | 2020-10-22T03:31:58Z | |
dc.date.issued | 2015-08 | es_ES |
dc.identifier.issn | 0947-8396 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/152798 | |
dc.description.abstract | [EN] Polyimide copolymers have been prepared based on different diamines as comonomers: a diamine without CN groups and a novel synthesized diamine with two CN groups prepared by polycondensation reaction followed by thermal cyclodehydration. Dielectric spectroscopy measurements were performed, and the dielectric complex function, ac conductivity and electric modulus of the copolymers were investigated as a function of CN group content in the frequency range from 0.1 to 107 Hz at temperatures from 25 to 260 °C. For all samples and temperatures above 150 °C, the dielectric constant increases with increasing temperature due to increasing conductivity. The ¿-relaxation is just detected for the sample without CN groups, being this relaxation overlapped by the electrical conductivity contributions in the remaining samples. For the copolymer samples and the polymer with CN groups, an important Maxwell¿Wagner¿Sillars contribution is detected. The mechanisms responsible for the dielectric relaxation, conduction process and electric modulus response have been discussed as a function of the CN group content present in the samples. | es_ES |
dc.description.sponsorship | This work was supported by FEDER through the COMPETE Program and by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Project PESTC/FIS/UI607/2011 and grants SFRH/BD/62507/2009 (A.C.L.) SFRH/BD/68499/2010 (C.M.C.). The authors also thank funding from "Matepro-Optimizing Materials and Processes," ref. NORTE-07-0124-FEDER-000037," co-funded by the "Programa Operacional Regional do Norte" (ON.2-O Novo Norte), under the "Quadro de Referencia Estrategico Nacional" (QREN), through the "Fundo Europeu de Desenvolvimento Regional" (FEDER). RSS acknowledges the support of the Spanish Ministry of Economy and Competitiveness through the project MAT2012-38359-C03-01 (including the FEDER financial support). Authors also thank the Basque Country Government for financial support (ACTIMAT project, ETORTEK Program, IE13-380, and Ayudas para Grupos de Investigacion del Sistema Universitario Vasco Program, IT718-13). | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Springer-Verlag | es_ES |
dc.relation.ispartof | Applied Physics A | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Polyimide | es_ES |
dc.subject | Electric Modulus | es_ES |
dc.subject | Amic Acid | es_ES |
dc.subject | Dipolar Relaxation | es_ES |
dc.subject | Conductivity Contribution | es_ES |
dc.subject.classification | INGENIERIA ELECTRICA | es_ES |
dc.subject.classification | MAQUINAS Y MOTORES TERMICOS | es_ES |
dc.title | Dielectric relaxation dynamics of high-temperature piezoelectric polyimide copolymers | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1007/s00339-015-9251-8 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/Eusko Jaurlaritza//IE13-380/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F62507%2F2009/PT/DESIGN OF ELECTROACTIVE POLYMER NANOCOMPOSITES WITH POROUS STRUCTURED MATERIALS/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/Eusko Jaurlaritza//IT718-13/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F68499%2F2010/PT/ELECTROACTIVE POLYMER BASED POROUS MEMBRANES FOR ENERGY STORAGE APPLICATIONS/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//MAT2012-38359-C03-01/ES/Materiales que inducen la fibrilogénesis de la fibronectina para producir microambientes sinérgicos en los factores de crecimiento/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/FCT//PEst-C%2FFIS%2FUI607%2F2011/ | |
dc.relation.projectID | info:eu-repo/grantAgreement/FCT//NORTE-07-0124-FEDER-000037/ | |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Ingeniería Eléctrica - Departament d'Enginyeria Elèctrica | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada | es_ES |
dc.description.bibliographicCitation | Maceiras, A.; Costa, CM.; Lopes, AC.; San Sebastián, M.; Laza, JM.; Vilas, JL.; Gómez Ribelles, JL.... (2015). Dielectric relaxation dynamics of high-temperature piezoelectric polyimide copolymers. Applied Physics A. 120(2):731-743. https://doi.org/10.1007/s00339-015-9251-8 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1007/s00339-015-9251-8 | es_ES |
dc.description.upvformatpinicio | 731 | es_ES |
dc.description.upvformatpfin | 743 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 120 | es_ES |
dc.description.issue | 2 | es_ES |
dc.relation.pasarela | S\299915 | es_ES |
dc.contributor.funder | Gobierno Vasco/Eusko Jaurlaritza | es_ES |
dc.contributor.funder | European Regional Development Fund | es_ES |
dc.contributor.funder | Fundação para a Ciência e a Tecnologia, Portugal | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |
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