화학공학소재연구정보센터
Industrial & Engineering Chemistry Research, Vol.54, No.21, 5598-5603, 2015
Reaction Monitoring of in Situ Formation of Poly(sodium acrylate)-Based Nanocomposites Using ATR-FTIR Spectroscopy
The in situ formation of poly(sodium acrylate)-based nanocomposites was monitored in-line using an attenuated total reflectance/Fourier transform infrared (ATR-FTIR) spectroscopic probe. Results were compared with conversion measurements using an off-line gravimetric method. A multivariate statistical data treatment based on the online data for the nanocomposite containing 0.5 wt % of nanosilver was used to calibrate the ATR-FTIR spectroscopic probe. The ATR-FTIR method was shown to be reliable based on 95% confidence intervals for monitoring the production of polymers synthesized in the presence of different amounts of nanosilver over the full range of monomer conversion.