Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/59306

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dc.contributor.authorOliveira, Filipa M.por
dc.contributor.authorNunes, Teresa G.por
dc.contributor.authorDencheva, Nadya Vasilevapor
dc.contributor.authorDenchev, Z.por
dc.date.accessioned2019-02-28T16:53:18Z-
dc.date.available2019-02-28T16:53:18Z-
dc.date.issued2018-06-
dc.date.submitted2018-
dc.identifier.urihttp://hdl.handle.net/1822/59306-
dc.description.abstractThe search for new thermoplastic materials with electromagnetic interference (EMI) properties led to the preparation of PA6 micron-sized particles carrying 10-20 wt.% of metal payloads. To assess their applicability in various applications, e.g., in magnetic resonance imaging, systematic analysis by means of solid state NMR are necessary. The main idea of this work is to study the influence of well-dispersed metal fillers (Al, Cu, and Mg) on the semi-crystalline structure and molecular dynamics of PA6 microparticles obtained by anionic polymerization in suspension. The response of the amorphous and crystalline PA6 phases are recorded using conventional 13C MAS and CP-MAS RF pulse sequences, respectively. NMR relaxation studies were performed to determine the motions in the kHz and MHz frequency scales, characterized by the relaxation times T1ρ (ms)  and T1 (s) of the C1-C6 carbons of the PA6 matrix. Finally, metal loaded PAMC are tested as EMI shielding materials by means of 15N solid state NMR at 30 MHz.por
dc.description.sponsorshipThis work has been carried out with financial aid of the project TSSiPRO NORTE-01-0145-FEDER-000015, suported by the regional operation program NORTE2020 under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund, as well as funding from FCT – Portuguese Foundation for Science and Technology within the strategic projects UID/CTM/50025/2013, LA25/2013-2014. FMO acknowledges also the PhD Grant PD/BD/114372/2016 of FCT (AdvaMTech – PhD Program in Advanced Materials and Processing).por
dc.language.isoengpor
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147333/PTpor
dc.rightsopenAccesspor
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/por
dc.subjectSolid sate NMRpor
dc.subjectPolyamide 6 microcapsulespor
dc.subjectMetal-containing polyamidepor
dc.subjectPolyamide hybridspor
dc.titlePolyamide 6 composites: a solid-state NMR studyeng
dc.typepanelPresentationpor
dc.peerreviewednopor
oaire.citationConferenceDate26 Jun. - 29 Jun. 2018por
sdum.event.titleVIII Ibero-American NMR meetingpor
sdum.event.typemeetingpor
oaire.citationConferencePlaceLisboa, Portugalpor
dc.subject.fosEngenharia e Tecnologia::Engenharia dos Materiaispor
dc.description.publicationversioninfo:eu-repo/semantics/publishedVersionpor
sdum.conferencePublicationVIII Ibero-American NMR meetingpor
Appears in Collections:IPC - Resumos em actas de encontros científicos internacionais com arbitragem

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