Аннотация:Advantages of multifrequency electron paramagnetic resonance spectroscopy combined with various methodsтАФsuch as spin labels and probes, microwave saturation, and saturation transferтАФfor investigating various polymeric systems are presented. Paramagnetic centers that are stabilized and/or initiated as a nanoscope probe can provide detailed information about structure and dynamics of the microenvironment. Correlations of structural, morphological, and dynamic characteristics of polymer systems with magnetic, relaxation, and mobile properties of paramagnetic centers embedded into their bulk are also discussed.