01602nas a2200241   4500008004100000022001400041245015300055210006900208260007500277300001200352490000700364520070200371653002301073653001801096653002201114653002001136653000901156653001401165100001601179700001901195700001601214856013001230       2015                        eng d  a0095-978200aInteresting viscosity changes in the aqueous urea-ionic liquid system: effect of alkyl chain length attached to the cationic ring of an ionic liquid0 aInteresting viscosity changes in the aqueous ureaionic liquid sy  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGER/PLENUM PUBLISHERScAPR  a742-7530 v443 a<p>In the present article, we demonstrate the effect of urea on the structure of the ionic liquids in their aqueous solutions through viscometric methods. We unravel the structure altering effect of urea in its aqueous solutions of ionic liquids possessing higher alkyl chains. The finding is an attempt to discern the anomalous behavior of urea as shown in the past with the help of many techniques. Interestingly, in the aqueous solutions of the imidazolium based ionic liquids having substitution of -C4H9 and -C6H13 groups on the imidazolium ring, urea exhibits kosmotropic behavior. Further increase in the substituted alkyl group such as -C8H17 alters the urea behavior to be chaotropic.</p>10aAlkyl chain length10aionic liquids10aStructure-breaker10aStructure-maker10aUrea10aviscosity1 aNanda, Raju1 aRai, Gitanjali1 aKumar, Anil  uhttps://library.ncl.res.in/content/interesting-viscosity-changes-aqueous-urea-ionic-liquid-system-effect-alkyl-chain-length-0