FTIR quantitative characterization of chemically modified polypropylenes containing succinic grafted groups

The FTIR quantitative evaluation of grafting succinic anhydride onto polypr opylenes is presented. It was done by correlating relative absorbance value s obtained from IR spectra with grafting levels of the sample as determined by an improved traditional hot titration method. The results obtained seem to be valid for either atactic or isotactic modified polypropylenes and su ggest a careful review about how this technique is usually used in the quan tification of polar groups grafted onto polyolefins. (C) 1999 John Wiley & Sons, Inc.