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Campo DC | Valor | Idioma |
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dc.rights.license | published by MDPI | - |
dc.contributor.author | Villafañe Barajas, S. A. | - |
dc.contributor.author | Ruiz Bermejo, Marta | - |
dc.contributor.author | Rayo Pizarroso, P. | - |
dc.contributor.author | Colín García, M. | - |
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 | 2021-03-12T08:46:50Z | - |
dc.date.available | 2021-03-12T08:46:50Z | - |
dc.date.issued | 2020-08-11 | - |
dc.identifier.citation | Processes 8(8): 968(2020) | es |
dc.identifier.other | https://www.mdpi.com/2227-9717/8/8/968 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12666/100 | - |
dc.description | (This article belongs to the Special Issue Advances in HCN-Derived Polymers) | es |
dc.description.abstract | Hydrogen cyanide (HCN)-derived polymers have been recognized as sources of relevant organic molecules in prebiotic chemistry and material sciences. However, there are considerable gaps in the knowledge regarding the polymeric nature, the physicochemical properties, and the chemical pathways along polymer synthesis. HCN might have played an important role in prebiotic hydrothermal environments; however, only few experiments use cyanide species considering hydrothermal conditions. In this work, we synthesized an HCN-derived thermal polymer simulating an alkaline hydrothermal environment (i.e., HCN (l) 0.15 M, 50 h, 100 degrees C, pH approximately 10) and characterized its chemical structure, thermal behavior, and the hydrolysis effect. Elemental analysis and infrared spectroscopy suggest an important oxidation degree. The thermal behavior indicates that the polymer is more stable compared to other HCN-derived polymers. The mass spectrometric thermal analysis showed the gradual release of several volatile compounds along different thermal steps. The results suggest a complicate macrostructure formed by amide and hydroxyl groups, which are joined to the main reticular chain with conjugated bonds (C=O, N=O, -O-C=N). The hydrolysis treatment showed the pH conditions for the releasing of organics. The study of the synthesis of HCN-derived thermal polymers under feasible primitive hydrothermal conditions is relevant for considering hydrothermal vents as niches of chemical evolution on early Earth. | es |
dc.description.sponsorship | This research was funded by the project ESP2017-89053-C2-2-P from the Spanish Ministerio de Ciencia, Innovacion y Universidades; the project MDM-2017-0737 Centro de Astrobiologia (CSIC-INTA), Unidad de Excelencia Maria de Maeztu from the Spanish State Research Agency (AEI), the DGAPA-PAPIIT (grant number IA203217), and CONACyT (grant A1-S-25341). | es |
dc.language.iso | eng | es |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | es |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2017-89053-C2-2-P/ES/QUIMICA PREBIOTICA: UNA PLATAFORMA EXPERIMENTAL PARA LA EXPLORACION DE HABITABILIDAD EN LUNAS HELADAS DEL SISTEMA SOLAR/ | - |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | HCN-Derived thermal polymer | es |
dc.subject | Thermolysis | es |
dc.subject | Alkaline hydrothermal systems | es |
dc.subject | Chemical evolution | es |
dc.subject | Polymers | es |
dc.subject | Chemistry | es |
dc.title | Characterization of HCN-derived thermal polymer: Implications for chemical evolution | es |
dc.type | info:eu-repo/semantics/article | es |
dc.contributor.orcid | Colín García, M. https://orcid.org/0000-0002-9193-1761 | - |
dc.identifier.doi | 10.3390/pr8080968 | - |
dc.identifier.e-issn | 2227-9717 | - |
dc.contributor.funder | Consejo Nacional de Ciencia y Tecnología (CONACYT) | - |
dc.description.peerreviewed | Peer review | es |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | - |
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