Small-angle neutron scattering and volumetric studies of dilute solutions of N, N#-dimethylpropyleneurea in heavy water

Noémi K. Székely, Gábor Jancsó

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17 Citations (Scopus)

Abstract

Small-angle neutron scattering experiments and density measurements were performed on dilute solutions of N,N'-dimethylpropyleneurea (DMPU) in heavy water in the mole fraction range 0.005(0.0025)-0.05 at 288.15, 298.15 and 313.15 K. From the experimental results values of the radius of gyration, second osmotic as well as second and third molal volume virial coefficients, and Kirkwood-Buff integrals were calculated. The results led to the conclusions that DMPU has a structure-making effect on water and the pairwise solute-solute interactions exhibit no temperature dependence and are less attractive in DMPU solutions than in N,N'- dimethylethyleneurea and tetramethylurea solutions.

Original languageEnglish
Pages (from-to)2207-2211
Number of pages5
JournalJournal of Physical Chemistry A
Volume113
Issue number10
DOIs
Publication statusPublished - Mar 12 2009

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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