2H magnetic relaxation of 2H 2O absorbed by wool

Abstract

D 2O absorbed by intact wool fibers was studied by solid-state 2H nuclear magnetic resonance (NMR) spectroscopy. In wool fibers swollen in D 2O, the deuteron transverse magnetization and the spin-locked magnetization revealed a non-exponential decay. At least two NMR phases with different sets of the NMR relaxation parameters, T 1 ρ ( 2H) and T 2 ( 2H), have been detected that may be a manifestation of two different morphological phases of the cortex of the fiber.