Publicación: Solid-state polymerization of diaminomaleonitrile: Toward a new generation of conjugated functional materials
dc.contributor.author | Hortelano, C. | |
dc.contributor.author | Ruiz Bermejo, Marta | |
dc.contributor.author | De la Fuente, J. L. | |
dc.contributor.other | Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737 | |
dc.date.accessioned | 2022-02-08T12:37:44Z | |
dc.date.available | 2022-02-08T12:37:44Z | |
dc.date.issued | 2021-05-03 | |
dc.description | Kinetic and the mechanism for the solid-state polymerization of DAMN was studied. Šesták-Berggren model can describe these solid-state polymerizations monitoring by DSC. Structural and morphological properties of DAMN polymers were analysed. DAMN polymers may be potentially applied as multi-functional materials. | es |
dc.description.abstract | The solid-state polymerization (SSP) of organic molecules to form two-dimensional (2D) materials remains a challenge, especially when these reactions are performed in one pot using a single reagent. As will be shown, the SSP of the HCN tetramer diaminomaleonitrile (DAMN) may be an excellent example of these reactions. Dynamic experiments by differential scanning calorimetry (DSC) allow the analysis of the thermally initiated bulk polymerization of DAMN. Under nonisothermal measurements at low heating rates, a multiple-step polymerization reaction takes place. The SSP of DAMN is highly efficient, possibly due to the autocatalytic nature of its kinetics, which are consistent with the two-parameter Šesták-Berggren (SB) model and describe the three stages found in its complicated mechanism, confirmed also from an analysis of the variation in the apparent activation energy with the conversion degree. Relevant mechanistic aspects, such as the dehydrocyanation and deamination processes during SSP, are extracted by thermogravimetry-mass spectrometry (TG-MS). Moreover, some structural and morphological properties of these materials are characterized by Fourier-transform infrared (FTIR) spectroscopy and microscopy. All this information allows us to propose hypothetical pathways for the production of a complex conjugated system, predominantly constituted by a 2D macrostructure based on imidazole rings. This work opens up new possibilities for the synthesis of functional poly(heterocycle) systems, expanding our view of a plausible prebiotic chemical reaction space and providing the foundation for systematic studies of the structure-property relationships of novel HCN-derived polymers, which are currently of great interest in the fields of materials and surface science. | es |
dc.description.peerreviewed | Peerreview | es |
dc.description.sponsorship | The authors used the research facilities of the Centro de Astrobiologia (CAB) and were supported by the Instituto Nacional de T ' ecnica Aeroespacial Esteban Terradas (INTA), by the projects PID2019104205 GB-C21 and PID2019-107442RB-C32 from the Spanish Ministerio de Ciencia, Innovaci ' on y Universidades, and by the Spanish State Research Agency, project MDM-2017-0737 Centro de Astrobiologia (CSIC-INTA), Unidad de Excelencia Maria de Maeztu. C. Hortelano expresses his gratitude to INTA for this training scholarship. Additionally, the authors are grateful to Ma Teresa Fern ' andez for generating the FTIR spectra and to Pilar Valles from INTA for recording the SEM | es |
dc.identifier.citation | Polymer 223: 123696(2021) | es |
dc.identifier.doi | 10.1016/j.polymer.2021.123696 | |
dc.identifier.e-issn | 1873-2291 | |
dc.identifier.issn | 0032-3861 | |
dc.identifier.other | https://www.sciencedirect.com/science/article/abs/pii/S0032386121003190 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12666/482 | |
dc.language.iso | eng | es |
dc.publisher | Elsevier BV | es |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104205GB-C21 | |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107442RB-C32/ES/OPERACION CIENTIFICA Y EXPLOTACION DE DATOS EN RLS (RAMAN LASER SPECTROMETER) DE EXOMARS Y SUPERCAM DE MARS2020/ | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | |
dc.rights.license | © 2020 Elsevier Ltd. All rights reserved | |
dc.subject | HCN Polymers | es |
dc.subject | Diaminomaleonitrile | es |
dc.subject | Solid State Polymerization | es |
dc.subject | DSC | es |
dc.subject | Kinetics | es |
dc.subject | Complex Mechanism | es |
dc.title | Solid-state polymerization of diaminomaleonitrile: Toward a new generation of conjugated functional materials | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | |
dspace.entity.type | Publication |
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