The temperature dependence of the deuteron n.m.r, spin-lattice relaxation time of polycarbonate was measured as a function of hydrostatic pressure, which causes a denser packing of the polymer. Observed activation volumes and activation energies illustrate the marked density dependence of the amplitude of phenylene motions.
Посилання на статтю:
Effect of high hydrostatic pressure on the phenylene motion in polycarbonate as revealed by =H spin-lattice relaxation / M. T. Hansen, A. S. Kulik*, K. O. Prins* and H. W. Spiessf // Polymer. – 1992. – Vol 33. – P. 2231-2233.