Synthesis and properties of glass-forming condensed aromatic amines with reactive functional groups

Abstract

A series of new glass-forming condensed aromatic amines containing functional groups was synthesized by stepwise route and characterized by nuclear magnetic resonance, infrared and mass spectrometry. The thermal, optical and photoelectrical properties of the synthesized compounds are reported. The synthesized aromatic amines form glasses with the glass transition temperatures in the range of 73–104 °C as characterized by differential scanning calorimetry. The ionisation potentials of these compounds range from 5.25 to 5.36 eV as determined by electron photoemission method. The best charge transport properties were shown by di(4-(4-(3,6-di( N, N-diphenylamino)carbazole-9)-phenyloxy-2-hydroxypropylthio) phenyl)sulphide. Room temperature hole-drift mobilities in its 50% solid solutions in bisphenol Z polycarbonate established by the xerographic time-of-flight technique were found to be 2 × 10 −6 cm 2 V −1 s −1 at electric field of 6.4 × 10 5 V cm −1.