dc.contributor.author | Robles Hernández, Beatriz | |
dc.contributor.author | González Burgos, Marina | |
dc.contributor.author | Pomposo Alonso, José Adolfo | |
dc.contributor.author | Colmenero de León, Juan | |
dc.contributor.author | Alegría Loinaz, Iñaki | |
dc.date.accessioned | 2019-05-10T11:14:49Z | |
dc.date.available | 2019-05-10T11:14:49Z | |
dc.date.issued | 2019-03-21 | |
dc.identifier.citation | Polymers 11(3) : (2019) // Article ID 533 | es_ES |
dc.identifier.issn | 2073-4360 | |
dc.identifier.uri | http://hdl.handle.net/10810/32744 | |
dc.description.abstract | Single-chain polymer nanoparticles (SCNPs) obtained through chain collapse by intramolecular cross-linking are attracting increasing interest as components of all-polymer nanocomposites, among other applications. We present a dielectric relaxation study on the dynamics of mixtures of poly(vinyl methyl ether) (PVME) and polystyrene (PS)-based SCNPs with various compositions. Analogous dielectric measurements on a miscible blend of PVME with the linear precursor chains of the SCNPs are taken as reference for this study. Both systems present completely different behaviors: While the blend with the linear precursor presents dynamics very similar to that reported for PVME/PS miscible blends, in the PVME/SCNP mixtures there are an appreciable amount of PVME segments that are barely affected by the presence of SCNPs, which nearly vanishes only for mixtures with high SCNP content. Interestingly, in the frame of a simple two-phase system, our findings point towards the existence of a SCNP-rich phase with a constant PVME fraction, regardless of the overall concentration of the mixture. Moreover, the dynamics of the PVME segments in this SCNP-rich phase display an extreme dynamic heterogeneity, a signature of constraint effects. | es_ES |
dc.description.sponsorship | This research was funded by Eusko Jaurlaritza project code: IT-654-13 and the Ministerio de Economia y Competitividad project code: MAT2015-63704-P (MINECO/FEDER, UE). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2015-63704-P | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | nanocomposites | es_ES |
dc.subject | single-chain polymer nanoparticles | es_ES |
dc.subject | polymer blends | es_ES |
dc.subject | dielectric relaxation | es_ES |
dc.subject | glass transition | es_ES |
dc.subject | poly(ethylene oxide) | es_ES |
dc.subject | segmental dynamics | es_ES |
dc.subject | relaxation | es_ES |
dc.subject | noncovalent | es_ES |
dc.subject | covalent | es_ES |
dc.subject | delivery | es_ES |
dc.subject | design | es_ES |
dc.subject | blends | es_ES |
dc.subject | NMR | es_ES |
dc.title | Glass-Transition Dynamics of Mixtures of Linear Poly(Vinyl Methyl Ether) with Single-Chain Polymer Nanoparticles: Evidence of a New Type of Nanocomposite Materials | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/11/3/533 | es_ES |
dc.identifier.doi | 10.3390/polym11030533 | |
dc.departamentoes | Física de materiales | es_ES |
dc.departamentoeu | Materialen fisika | es_ES |