Study of molecular mobility in oligosulphones using pulsed NMR

Abstract

Two oligosulphone samples of number average molecular weights 1500 and 4600 were used to measure spin-spin, spin-lattice relaxation times and the effective relaxation time in the sequence of MW-4 of average dipole interaction at temperature ranging from - 160 to 230°. Six relaxation processes were observed, of which two high temperature processes depend on the molecular weight of the oligosulphone. © 1981.