Small-angle neutron scattering study of aqueous solutions of pentanediol and hexanediol
Szekely, NK; Almasy, L; Radulescu, A; Rosta, L
| HERO ID | 4684039 |
|---|---|
| In Press | No |
| Year | 2007 |
| Title | Small-angle neutron scattering study of aqueous solutions of pentanediol and hexanediol |
| Authors | Szekely, NK; Almasy, L; Radulescu, A; Rosta, L |
| Journal | Journal of Applied Crystallography |
| Volume | 40 |
| Page Numbers | S307-S311 |
| Abstract | Aqueous solutions of 1,2-pentanediol, 1,5-pentanediol, 1,2-hexanediol and 1,6-hexanediol have been studied by small-angle neutron scattering over a wide range of concentrations and temperatures. The structure of the solutions on the mesoscopic length scale, corresponding to the intermolecular distances, was analysed with the help of the Kirkwood-Buff formalism. 1,2-Hexanediol solutions exhibited a strong attractive diol-diol interaction, a weak diol-diol attraction was found for 1,6-hexanediol and 1,2-pentanediol, and an extremely weak diol-diol attraction was found in 1,5-pentanediol solutions. The general tendencies are the following: aggregation is stronger as the length of the hydrophobic hydrocarbon chain increases and the 1,2-diols exhibit much stronger attraction then the 1,omega-diols. The temperature dependence of the aggregation is weak for the 1,2-diols but strong for the 1,omega-diols, indicating in the latter case the hydrophobic character of the interaction. |
| Doi | 10.1107/S0021889807001483 |
| Wosid | WOS:000246059800061 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |