Abstract
Small-angle and quasielastic neutron scattering measurements have been carried out on mixtures of 3-methylpyridine/heavy water (3MP/HW). Depending upon the relative concentration these mixtures are fully miscible or show a closed-loop phase diagram. Two mixtures corresponding to the fully miscible composition as well as a phase-separating sample are studied together with neat 3MP liquid. The SANS results show relatively large coherence lengths even for the miscible binary liquid. Quasielastic neutron scattering reveals a significant slowing down of the 3MP dynamics within the mixture as compared to that of pure 3MP. As the phase-separation line is approached from below the translational diffusion coefficients show a clear signature of critical slowing down that mimics the behavior of the shear viscosity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
