▎ 摘 要
Electron spin resonance in a multilayer graphene-polystyrene composite has been studied as dependent on the temperature and magnetic field. The observed g-factor of 2.003 was independent of the temperature and fell in the interval (g = 2.0022-2.0035) characteristic of the free electron of carbon. This behavior of the g-factor excludes the appearance of internal magnetic field in the composite.