Orientation of CSA-protonated polyaniline chains in solution in m-cresol and in films induced by a high magnetic field

A high magnetic field induces birefringence in CSA-protonated polyaniline solutions in m-cresol indicative of high chain orientation. Films cast from these solutions under a high magnetic field show conductivity and chain orientation anisotropy. The data suggest that the chains are oriented in the plane of the film with a preferential direction parallel to the field.