DISTRIBUTION OF FREE-VOLUME AND DIELECTRIC ALPHA-RELAXATION IN GLASS-FORMING LIQUID-MIXTURES

Anomalous change in the width of dielectric-loss band for liquid mixtu res near and above their glass-transition temperatures is explained by a theory considering the distribution of free volume as in the case o f a similar phenomenon observed in polymers. The data on the two solut ions, bromobenzene in decalin and chlorobenzene in pyridine, given in the literature Mere analyzed as typical examples. The results show tha t this theory can explain the data on the liquid mixtures satisfactori ly as in the case of those on polymers.