Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/56316

TítuloSynthesis and Physical and Thermodynamic Properties of Lactic Acid and Malic Acid-Based Natural Deep Eutectic Solvents
Autor(es)Castro, Vânia Isabel Baptista
Mano, F.
Reis, R. L.
Paiva, A.
Duarte, Ana Rita C.
Palavras-chaveNatural deep eutectic solvents
Physical properties
Thermodynamic properties
DataJun-2018
EditoraACS
RevistaJournal of Chemical and Engineering Data
CitaçãoCastro V., Mano F., Reis R. L., Paiva A., Duarte A. R. C. Synthesis and Physical and Thermodynamic Properties of Lactic Acid and Malic Acid-Based Natural Deep Eutectic Solvents, Journal of Chemical and Engineering Data, Vol. 63, Issue 7, pp. 2548-2556, doi:10.1021/acs.jced.7b01037, 2018
Resumo(s)In this paper, four natural deep eutectic solvents (NADES) systems were prepared at specific molar ratios, La:Bet (2:1) (lactic acid/betaine), La:Hist (9:1) (lactic acid/histidine), Ma:Bet:H 2 O (1:2:3) (malic acid/betaine/water) and Ma:Bet:Pro:H 2 O (1:1:1:2) (malic acid/betaine/proline/water). Their physical and thermodynamic properties were studied, namely viscosity, electrical conductivity, and heat capacity. The viscosity and electrical conductivity were determined as a function of temperature and the correlation for the temperature dependence was obtained and discussed based on Arrhenius theory. The heat capacity for all eutectic systems was measured by differential scanning calorimetry (DSC) over a temperature range of 293.15â 363.15 K. The ability of these NADES to reduce cellulose crystallinity was evaluated. Cellulose crystallinity after suspension in these NADES was studied by X-ray diffraction. Cellulose suspended in Ma/Bet/H 2 O (1:2:3) suffer the highest crystallinity reduction among the systems studied and was about of 20%.
Tipoarticle
URIhttp://hdl.handle.net/1822/56316
DOI10.1021/acs.jced.7b01037
ISSN0021-9568
e-ISSN1520-5134
Versão da editorahttps://pubs.acs.org/doi/10.1021/acs.jced.7b01037
Arbitragem científicayes
AcessorestrictedAccess
Aparece nas coleções:3B’s - Artigos em revistas/Papers in scientific journals

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