Dielectric relaxation behaviour in supercooled short-chain primary amines

摘要

This work presents the dielectric behaviour in the primary amines for the importance of NH2 group it hears in the interaction of aminoacids and proteins and their influence in the electric conduction process. Therefore, we have studied thedielectric properties for 1-propylamine, 1-butylamine and 1-pentylamine. Measurements were performed, between room temperature and -200°C, in the low frequency range. The isofrequency recordings of dispersionε' and absorptionε', for these three primaryamines, show clearly the liquid-solid phase transitions and the effect of the aliphatic chain length.