Matches in UGent Biblio for { <https://biblio.ugent.be/publication/4380980#aggregation> ?p ?o. }
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- aggregation classification "A1".
- aggregation creator B765142.
- aggregation creator B765143.
- aggregation creator B765144.
- aggregation creator B765145.
- aggregation creator person.
- aggregation date "2013".
- aggregation format "application/pdf".
- aggregation hasFormat 4380980.bibtex.
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- aggregation isPartOf urn:issn:1463-9076.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Physics and Astronomy".
- aggregation title "NMR self-diffusion study of a phosphonium bis(mandelato)borate ionic liquid".
- aggregation abstract "Newly synthesised halogen-free boron based ionic liquids (hf-BILs) composed of chelated orthoborate anions and phosphonium cations have hydrolytic stability, low melting point and outstanding wear and friction reducing properties. We report here the peculiarities of self-diffusion in one representative from this class, trihexyltetradecylphosphonium bis(mandelato)borate, [P-6,P-6,P-6,P-14][BMB], in the temperature range of its practical interest, 20-100 degrees C. NMR techniques demonstrated complicated diffusional behaviour - the ionic liquid can exist in one or two liquid "phases". In the low-temperature range (20-50 degrees C), two phases coexist where the cations, [P-6,P-6,P-6,P-14], are contained mainly in the phase with slower diffusion coefficients while the anions, [BMB], are in the phase with faster diffusion coefficients. Cations have lower diffusion coefficients with a factor of 20 as compared with the anions, an effect which is caused by aggregation of cations into domains due to so-called "hydrophobic interaction" of their hydrocarbon chains. As the temperature rises above 60 degrees C, the two phases merge into one where both ions have equal diffusion coefficients. This is caused by thermal motion making the cation domains smaller in size and more easily interacting with anions. As a result, anions and cations diffuse in this high-temperature range as a pair.".
- aggregation authorList BK1134677.
- aggregation endPage "9287".
- aggregation issue "23".
- aggregation startPage "9281".
- aggregation volume "15".
- aggregation aggregates 4417489.
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