Joint publication on DLS-based measurement of diffusion coefficients
Advanced measurement techniques for diffusion coefficients pave the way to a better understanding of diffusion in chemical processes. In an open-acess paper by Wenchang Wu et al. from the Institute of Advanced Optical Technologies – Thermophysical Properties (AOT‑TP), diffusivities of polyethylene glycols (PEGs) are determined using an advanced optical measurement technique, namely heterodyne dynamic light scattering (DLS). For these investigations, our group provided molar-weight distributed PEGs as well as monodisperse PEGs we obtained by preparative HPLC.
Publication details (open access):
Wenchang Wu, Malvina Supper, Michael H. Rausch, Malte Kaspereit, and Andreas P. Fröba:
Mutual Diffusivities of Binary Mixtures of Water and Poly(ethylene) Glycol from Heterodyne Dynamic Light Scattering.
International Journal of Thermophysics 43(12) (2022) 12
The work was supported by the Collaborative Research Centre CRC 1411 “Design of Particulate Products”.