Rheo-Raman | Combining Rheology and Raman Spectroscopy: Following the Reaction of a UV Curable Adhesive
The combination of an MCR rheometer with Cora 5001 Raman spectrometer and UV lamp allows simultaneous in-situ monitoring of physical and chemical changes in a product over time
A chemical reaction can be triggered by a variety of factors, like heat, time, or exposure to ultra violet (UV) light. The use of rheometry in combination with Raman spectroscopy allows to simultaneously acquire information about the chemical structure and physical properties, which then can be correlated to gain deeper insights.
An UV curing reaction is an example where both the chemical and physical material information are equally relevant. In UV curing, the UV exposure triggers a free radical reaction causing a direction change in the mechanical structure (transition from a liquid to a solid or from a gel to a rigid solid). This reaction can be further monitored by Raman spectroscopy because the chemical reaction leads to changes in various functional groups present in the material. These are reflected in the Raman spectra either by a formation or decrease (gradual or rapid) in peak signals.
Get the document
To receive this document please enter your email below.
