The use of NIR-FT-Raman spectroscopy for the characterization of polymer-supported reagents and catalysts

The NIR-FF-Raman spectroscopy represents a very useful tool for the qualita tive, semiquantitative and quantitative characterization of functional poly mers being used for the preparation of resin-supported reagents and catalys ts. This characterization is clearly complementary to the generally obtaine d using FT-IR techniques. The simplicity of the Raman sampling techniques m akes them very suitable for the use with highly crosslinked, insoluble poly mers and overcomes, many often, the limitations raised by the presence of p olar functional groups. Even some polar functional groups such as the chlor omethyl or thiol groups are easily analyzed using the FT-Raman spectroscopy . The use of this technique allows not only the analysis of the functional moieties present but also the appropriate characterization of the polymeric matrix in polystyrene-divinilbenzene resins. (C) 2001 Elsevier Science Ltd . All rights reserved.