Departments > Reactive Processing > Publications

Publications

Sahre, K. ; Hoffmann, T. ; Pospiech, D. ; Eichhorn, K.-J. ; Fischer, D. ; Voit, B.
Monitoring of the polycondensation reaction of Bisphenol A and 4,4'-dichlorodiphenylsulfone towards polysulfone (PSU) by real-time ATR-FTIR spectrocopy

The present study demonstrates a real-time ATR–FTIR spectroscopic monitoring of the PSU polycondensation reaction. The analytical interpretation of the real-time IR spectra with respect to different reaction steps was carried out on the basis of characteristic vibration bands of monomers and PSU. Moreover, the tracing of the polycondensation reaction in reference to the generated concentration of PSU and averaged molar masses were also under consideration. The molar masses of the synthesized low- and high-molecular PSUs determined by different analytical methods were compared. A selective calibration of PSU concentrations was calculated by a chemometric method and confirmed by two validation procedures. This calibration was used for the monitoring of PSU polycondensation reaction to get information on the kinetics of the described reaction.

Source
European Polymer Journal 42

Pages
2292-2301

DOI
http://dx.doi.org/10.1016/j.eurpolymj.2006.05.025

Published
October 2006
 
Publications
Publikationen

Departments

Reactive Processing

News