HIGH-RESOLUTION NMR AS A LOCAL PROBE OF STRUCTURE, CONFORMATION, AND MOBILITY IN SOLID POLYMERS

Because the NMR frequency of a dipolar nucleus is exquisitely sensitiv e to the structural and conformational natures of its immediate enviro nment, high resolution NMR can be utilized to probe the structures, co nformations, and motions (via resonance relaxation) of the constituent molecules belonging to solid samples. By means of a single polymer ex ample (polypropylene) we attempt to illustrate how structural, conform ational, and motional information about solid polymers can be obtained by employing high resolution, solid state NMR.