Fig. 7
From: Leveraging mechanochemistry for sustainable polymer degradation
In situ analysis configurations for reaction monitoring during milling. a Raman spectroscopy where a probe is placed perpendicular to the motion of the shaker ball mill. Care is taken to ensure that the focus of the probe is within the PMMA container. Horizontal arrows indicate the direction of shaking. reprinted with permission from Lukin and coworkers [107]. b A custom-made milling geometry used at the Scherrer Institute beamline leads to narrower diffraction peaks and less background than the setup similar to the one shown in Panel (a) for in situ XRD. The custom-made container has a steel inner milling chamber and an X-ray transparent outer analysis chamber (pink). The shaking can be set to either vertical or horizontal movement (blue double arrow), while the jar is also rotated (blue curled arrow). Adapted from Casati and coworkers [115]. c Configuration for simultaneous XRD, Raman spectroscopy, and thermography during milling. The vibratory mill shakes a PMMA jar vertically. Care is taken to ensure that the various techniques do not interfere with each other. Adapted from Emmerling and coworkers [122]
