• Media type: E-Article
  • Title: UV/VIS-Spectroscopic Inline Measurement for the Detection of Fouling Processes during the Polymerization of N-Vinylpyrrolidone
  • Contributor: Spoor, Erik; Welzel, Stefan; Nieken, Ulrich; Rädle, Matthias
  • Published: MDPI AG, 2023
  • Published in: Reactions, 4 (2023) 1, Seite 176-188
  • Language: English
  • DOI: 10.3390/reactions4010011
  • ISSN: 2624-781X
  • Origination:
  • Footnote:
  • Description: With the goal to better process the monitoring of occurring fouling, a backscatter probe was developed to perform in-line measurements in a half-shell reactor during the reaction of N-vinylpyrrolidone (NVP) to polyvinylpyrrolidone (PVP). The measurement technique detects the changes of bands in the UV range, which allows a direct correlation with the concentration. Thus, the measured absorbance signal allows a conclusion on the accumulation of fouling in the reactor and on changes in the conversion at the measurement location.
  • Access State: Open Access