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dc.contributor.authorPablos, Jesús Luis
dc.contributor.authorEstévez Bolívar, Pedro Antonio 
dc.contributor.authorMuñoz Santamaría, María Asunción 
dc.contributor.authorIbeas Cortes, Saturnino 
dc.contributor.authorSerna Arenas, Felipe 
dc.contributor.authorGarcía García, Félix Clemente 
dc.contributor.authorGarcía Pérez, José Miguel 
dc.date.accessioned2024-02-01T08:29:15Z
dc.date.available2024-02-01T08:29:15Z
dc.date.issued2015
dc.identifier.issn2050-7488
dc.identifier.urihttp://hdl.handle.net/10259/8547
dc.description.abstractWe have designed and successfully prepared polymer membranes as manageable films for colorimetric sensor materials for the visual detection of the acidity of water in the low pH range, below 4, and beyond the pH scale, up to a concentration of 11.6 M of perchloric acid. For this purpose, two monomers with weakly basic groups were synthesised, with these monomers containing up to four protonisable groups in the aforementioned acidic regions. The pKa values were calculated for the membranes in water, which exhibited gel behaviour, and ranged between 2.7 and −6.5. Accordingly, visual colour changes qualitatively indicated the acidity of water containing perchloric acid, and the quantification was performed inexpensively by UV/Vis spectroscopy. Titration with other acids is foreseen for practical applications. Moreover, polymer coatings of conventional cotton and high-tech p-aramid fibres, using the designed sensor monomers, yielded smart fabrics, which responded colorimetrically to the acidity of the water media. Furthermore, both membranes and smart fibres exhibited colour changes in air under acidic atmospheres, demonstrating the future development of fully sensory apparels and smart tags with envisaged health and safety applications. In addition, the sensor materials are reusable, because the protonation under acidic conditions is reverted by washing with water, and are highly stable under acidic conditions for long periods of time.en
dc.description.sponsorshipWe gratefully acknowledge the financial support provided by the Spanish Ministerio de Economía y Competitividad-Feder (MAT2011-22544 and MAT2014-54137-R) and by the Consejería de Educación – Junta de Castilla y León (BU232U13).en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherRoyal Society of Chemistryen
dc.relation.ispartofJournal of Materials Chemistry A. 2015, V. 3, n. 6, p. 2833-2843es
dc.subject.otherQuímica orgánicaes
dc.subject.otherChemistry, Organicen
dc.titlePolymer chemosensors as solid films and coated fibres for extreme acidity colorimetric sensingen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1039/C4TA06009Aes
dc.identifier.doi10.1039/C4TA06009A
dc.identifier.essn2050-7496
dc.journal.titleJournal of Materials Chemistry Aen
dc.volume.number3es
dc.issue.number6es
dc.page.initial2833es
dc.page.final2843es
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones


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