Melting transition in the leucoemeraldine form of polyaniline
Chacko, A. P.; Hardaker, S. S.; Gregory, R. V.; Hanks, T. W. Melting transition in the leucoemeraldine form of polyaniline. Polymer 1998, 39, 3289-3293.
Exploitation of the redox properties of polyaniline has made possible the formation of a meltable crystalline phase in the leucoemeraldine base form of the polymer. Both fibres and films exhibiting the melting transition were prepared from leucocemeraldine base/N,N-€²-dimethyl propylene urea solutions. This melting behaviour is confirmed by a battery of experimental methods: thermogravimetric analysis, differential scanning calorimetry, optical microscopy, dynamic mechanical analysis and x-ray diffraction. This melting transition raises the possibility of future melt processing of polyaniline.