Unveiling the mechanism of hydrotropy: evidence for water-mediated aggregation of hydrotropes around the solute
| Autor: | Elísabet Pires, Dinis O. Abranches, João A. P. Coutinho, Bruna P. Soares, Simão P. Pinho, Jordana Benfica, Seishi Shimizu, Tania E. Sintra, Alejsandro Leal-Duaso |
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| Přispěvatelé: | Universidade de Aveiro, Fundação para a Ciência e a Tecnologia (Portugal), Ministério da Educação e Ciência (Portugal), European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Gobierno de Aragón |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2018-0934 |
| Popis: | A recent proposal attributes the origin of hydrotropy to the water-mediated aggregation of hydrotrope molecules around the solute. Experimental evidence for this phenomenon is reported for the first time in this work, using 1H-NMR. A new computational technique to quantify apolarity is introduced and is used to show that apolarity of both solute and hydrotrope is the driving force of hydrotropy. This work was developed within the scope of the projects CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, and CIMO-Mountain Research Center, UIDB/00690/2020, both financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement. The NMR spectrometers are part of the National NMR Network (PTNMR) and are partially supported by Infrastructure Project No. 022161 (co-financed by FEDER through COMPETE 2020, POCI and PORL and FCT through PIDDAC). Financial support from Ministerio de Ciencia, Innovación (project RTI2018-093431-B-I00) and the Gobierno de Aragón (Group E37_17R) co-funded by FEDER 2014-2020 “Construyendo Europa desde Aragón” is acknowledged. B. P. S. acknowledges FCT for her PhD grant SFRH/BD/138439/2018. |
| Databáze: | OpenAIRE |
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