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Wykonano badania EPR kompozytów polipropylenu (PP) i polietylenu (PE) z domieszkami 20, 10 i 2,5 % wag. szungitu-III i antracytu. Stwierdzono, że widma EPR kompozytów PP i PE różnią się w zależności od ilości i rodzaju sproszkowanego węgla. Widać wyraźnie, że, widmo szungitu-III po wprowadzeniu do matrycy polimerowej ulega przeobrażeniu natomiast widmo antracytu praktycznie nie zmienia się. Pozwala...
The crossover phenomenon in Na[Fe(Th-Sa)2], a representative of a large class of the Fe(III) thiosemi-carbazonates, was examined by X-band EPR in temperatures 80 - 300°K and magnetisation of a polycrystalline sample was collected in the temperature range 1.8 - 300 K. The main results are as follows:- The appearance of LS complexes is requires thermal population of the 2A term but the transition process...
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