@article {Beyers:2004:0003-7028:863,
	author = "Beyers, C.P. and Boelens, H.F.M. and Klumperman, L. and Westerhuis, J.A.",
	title = "In-Line Reaction Monitoring of a Methyl Methacrylate and N, N-Dimethylacrylamide Copolymerization Reaction Using Near-Infrared Spectroscopy",
	journal = "Applied Spectroscopy",
	volume = "58",
	number = "7",
	year = "2004",
	abstract = "Fast and accurate monitoring of monomer concentration during copolymerization reactions is of much interest. It is known that near-infrared spectroscopy (NIRS) can be used to monitor polymerization reactions. Here, a free radical solution copolymerization reaction between methyl methacrylate and<I> N,N</I>-dimethylacrylamide is considered. NIR spectra were measured in-line with a transflectance probe. The spectra of both involved monomers are very similar, making monitoring with NIRS challenging. It is shown that the NIRS calibration can be set up with only a few (5) off-line measured mixtures. Several validation methods for such a NIRS calibration model are discussed and tested. NIRS is used to follow conversion of the two monomers in a copolymerization reaction on-line.",
	pages = "863-869",
	url = "http://www.ingentaconnect.com/content/sas/sas/2004/00000058/00000007/art00022",
	doi = "doi:10.1366/0003702041389346"
}