THE RHEOLOGICAL PROPERTIES OF POLYANILINE SOLUTION

摘要

This paper presents our work on the rheological properties of the solution of polyaniline (PAn) in N-methyl-2-pyrrolidone (NMP). The results indicate that the solution's non-Newtonian property becomes more prominent with the increase in solution concentration) exhibiting the behavior of pseudo-plastic fluid. Besides, there is a critical concentration C, (around 0.06 g/ml), beyond which the viscosity of the PAn/NMP solution takes a sudden increase. With temperature rising, both the viscosity and the thixotropy of the solution decrease, implying that there exist physical cross-linking interactions between the molecular chains in the solution.