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Effect of Dendritic Side Groups on the Mobility of Modified Poly(epichlorohydrin) Copolymers

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Effect of Dendritic Side Groups on the Mobility of Modified Poly(epichlorohydrin) Copolymers

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dc.contributor.author TERUEL JUANES, ROBERTO es_ES
dc.contributor.author Pascual-Jose, B. es_ES
dc.contributor.author Graf, R. es_ES
dc.contributor.author Reina, J. A. es_ES
dc.contributor.author Giamberini, M. es_ES
dc.contributor.author Ribes-Greus, A. es_ES
dc.date.accessioned 2022-10-07T18:07:02Z
dc.date.available 2022-10-07T18:07:02Z
dc.date.issued 2021-06-13 es_ES
dc.identifier.uri http://hdl.handle.net/10251/187295
dc.description.abstract [EN] The macromolecular dynamics of dendronized copolymer membranes (PECHs), obtained by chemical modification of poly(epichlorohydrin) with the dendron 3,4,5-tris[4-(n-dodecan-1-yloxy)benzyloxy] benzoate, was investigated. In response to a thermal treatment during membrane preparation, these copolymers show an ability to change their shape, achieve orientation, and slightly crystallize, which was also observed by CP-MAS NMR, XRD, and DSC. The phenomenon was deeply analyzed by dielectric thermal analysis. The dielectric spectra show the influence of several factors such as the number of dendritic side groups, the orientation, their self-assembling dendrons, and the molecular mobility. The dielectric spectra present a sub-Tg dielectric relaxation, labelled as gamma, associated with the mobility of the benzyloxy substituent of the dendritic group. This mobility is not related to the percentage of these lateral chains but is somewhat hindered by the orientation of the dendritic groups. Unlike other less complex polymers, the crystallization was dismantled before the appearance of the glass transition (alpha(Tg)). Only after that, clearing transition (alpha(Clear)) can be observed. The PECHs were flexible and offered a high free volume, despite presenting a high degree of modifications. However, the molecular mobility is not independent in each phase and the self-assembling dendrons can be eventually fine-tuned according to the percentage of grafted groups. es_ES
dc.description.sponsorship This research was funded by the Spanish Ministry of Science, Innovation and Universities, grant POLYDECARBOCELL (ENE2017-86711-C3-1-R, ENE2017-86711-C3-3-R). es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation.ispartof Polymers es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Broadband dielectric spectroscopy es_ES
dc.subject Dielectric relaxation spectra es_ES
dc.subject Macromolecular cooperativity es_ES
dc.subject Segmental dynamics es_ES
dc.subject Dendronized liquid crystal membranes es_ES
dc.subject Poly(epichlorohydrin) es_ES
dc.subject CP-MAS NMR es_ES
dc.subject XRD es_ES
dc.subject DSC es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Effect of Dendritic Side Groups on the Mobility of Modified Poly(epichlorohydrin) Copolymers es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/polym13121961 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2017-86711-C3-1-R/ES/SISTEMA INTEGRADO DE DESCARBONIZACION Y PRODUCCION DE ENERGIA BASADO EN PILAS DE COMBUSTIBLE DE METANOL DIRECTO PARA APLICACIONES NAVALES Y AEROESPACIALES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2017-86711-C3-3-R/ES/DESARROLLO DE MEMBRANAS BIOMIMETICAS PARA TRANSPORTE DE PROTONES Y ADSORCION DE CO2, Y CATALISIS PARA OBTENCION DE METANOL/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.description.bibliographicCitation Teruel Juanes, R.; Pascual-Jose, B.; Graf, R.; Reina, JA.; Giamberini, M.; Ribes-Greus, A. (2021). Effect of Dendritic Side Groups on the Mobility of Modified Poly(epichlorohydrin) Copolymers. Polymers. 13(12):1-19. https://doi.org/10.3390/polym13121961 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/polym13121961 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 19 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 13 es_ES
dc.description.issue 12 es_ES
dc.identifier.eissn 2073-4360 es_ES
dc.identifier.pmid 34199206 es_ES
dc.identifier.pmcid PMC8231771 es_ES
dc.relation.pasarela S\441872 es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
upv.costeAPC 1452 es_ES


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