Structure and molecular dynamics in metal-containing polyamide 6 microparticles
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2022 |
| Outros Autores: | , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | https://hdl.handle.net/1822/81080 |
Resumo: | The data presented in this study are available on request from the corresponding author. |
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Structure and molecular dynamics in metal-containing polyamide 6 microparticlesPolymer microparticlesMetal particles13C solid-state NMRCrystalline structureRelaxation timesC-13 solid-state NMRScience & TechnologyThe data presented in this study are available on request from the corresponding author.Polymer microparticles are used in additive manufacturing, separation and purification devices, biocatalysis, or for the recognition of biomolecules. This study reports on the effect of metal fillers on the structure and molecular dynamics of polyamide 6 (PA6) microparticles (MPs) containing up to 19 wt.% of Al, Cu, or Mg. These hybrid MPs are synthesized via reactive microencapsulation by anionic ring-opening polymerization in solution, in the presence of the metal filler. <sup>13</sup>C high-resolution solid-state NMR (ssNMR) spectroscopy is employed as the primary characterization method using magic angle spinning (MAS) and cross-polarization (CP)/MAS. Depending on the metal filler, the ssNMR crystallinity index of the MP varies between 39–50%, as determined by deconvolution of the <sup>13</sup>C MAS and CP/MAS spectra. These values correlate very well with the crystallinity derived from thermal or X-ray diffraction data. The molecular dynamics study on PA6 and Cu-containing MP shows similar mobility of carbon nuclei in the kHz, but not in the MHz frequency ranges. The paramagnetic Al and Mg have an observable effect on the relaxation; however, conclusions regarding the PA6 carbon motions cannot be unequivocally made. These results are useful in the preparation of hybrid microparticles with customized structures and magneto-electrical properties.This research was funded by Fundação para a Ciência e Tecnologia (FCT), project UID/CTM/50025/2019. N. Dencheva is also grateful for the personal program contract CTTI-51/18-IPC. FMO wishes to thank the AdvaMTech—Ph.D. Program in Advanced Materials and Processing for the Ph.D. grant PD/BD/114372/2016 (FCT).Multidisciplinary Digital Publishing InstituteUniversidade do MinhoOliveira, Filipa M.Nunes, Teresa G.Dencheva, Nadya VasilevaDenchev, Z.2022-11-052022-11-05T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/81080engOliveira, F.M.; Nunes, T.G.; Dencheva, N.V.; Denchev, Z.Z. Structure and Molecular Dynamics in Metal-Containing Polyamide 6 Microparticles. Crystals 2022, 12, 1579. https://doi.org/10.3390/cryst121115792073-435210.3390/cryst12111579https://www.mdpi.com/2073-4352/12/11/1579info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:15:01ZPortal AgregadorONG |
| dc.title.none.fl_str_mv |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles |
| title |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles |
| spellingShingle |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles Oliveira, Filipa M. Polymer microparticles Metal particles 13C solid-state NMR Crystalline structure Relaxation times C-13 solid-state NMR Science & Technology |
| title_short |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles |
| title_full |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles |
| title_fullStr |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles |
| title_full_unstemmed |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles |
| title_sort |
Structure and molecular dynamics in metal-containing polyamide 6 microparticles |
| author |
Oliveira, Filipa M. |
| author_facet |
Oliveira, Filipa M. Nunes, Teresa G. Dencheva, Nadya Vasileva Denchev, Z. |
| author_role |
author |
| author2 |
Nunes, Teresa G. Dencheva, Nadya Vasileva Denchev, Z. |
| author2_role |
author author author |
| dc.contributor.none.fl_str_mv |
Universidade do Minho |
| dc.contributor.author.fl_str_mv |
Oliveira, Filipa M. Nunes, Teresa G. Dencheva, Nadya Vasileva Denchev, Z. |
| dc.subject.por.fl_str_mv |
Polymer microparticles Metal particles 13C solid-state NMR Crystalline structure Relaxation times C-13 solid-state NMR Science & Technology |
| topic |
Polymer microparticles Metal particles 13C solid-state NMR Crystalline structure Relaxation times C-13 solid-state NMR Science & Technology |
| description |
The data presented in this study are available on request from the corresponding author. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-11-05 2022-11-05T00:00:00Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/81080 |
| url |
https://hdl.handle.net/1822/81080 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
Oliveira, F.M.; Nunes, T.G.; Dencheva, N.V.; Denchev, Z.Z. Structure and Molecular Dynamics in Metal-Containing Polyamide 6 Microparticles. Crystals 2022, 12, 1579. https://doi.org/10.3390/cryst12111579 2073-4352 10.3390/cryst12111579 https://www.mdpi.com/2073-4352/12/11/1579 |
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info:eu-repo/semantics/openAccess |
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openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
| publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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