FUNCTIONAL-GROUP DETERMINATION IN HYDROXYLATED POLYMERS

One knows that the determination of the functional group in a chain of polymer is difficult owing mainly to small concentration in the total polymer mass. In order to determine the liquid polyisoprene (PILH) an d liquid polybutadiene (PBLH) hydroxilated functionality's a modificat ion of the terminal groups was performed. A functionality determinatio n technique by H-1-NMR was developed using phenyl or naphthyl isocyana te as reagents. The results were compared with the functionality obtai ned through the titration technique with 3,5-dinitrobenzoyl chloride a s reagent.