Polymer composites for dynamic nuclear spin polarization experiments and their fabrication methods

摘要

PROBLEM TO BE SOLVED: To provide a polymer composite material for a dynamical nuclear spin polarization test, which has high nuclear spin polarization.SOLUTION: A polymer composite material for a dynamical nuclear spin polarization test is obtained by diffusing a radical compound in a polymer composite material which is in the presence of inert gas, under a vacuum condition, or immersed in a solvent. A local density of the radical compound is 15 to 50 mM, and nuclear spin polarization is 25% or more.