Abstract
The liquid-glass transition of propylene glycol was studied using broadband light scattering spectra obtained using the Sandercook-type Fabry-Perot interferometer and the additive triple-grating spectrometer. The depolarized spectra in a liquid phase at 363 K clearly show an α peak and a boson peak. With decreasing temperature α peak shifts rapidly to a lower frequency but the boson peak does not change significantly. The reduced spectra was analyzed by superposition of the Davidson-Cole α relaxation, a Debye fast relaxation and a boson peak. It is found that the fast relaxation frequency does not depend on temperature, and its intensity decreases remarkably on cooling towards 139 K. The temperature variation of the α relaxation was also measured using broadband dielectric measurements.
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.
