Properties of Taeniolite/Acriflavine Complex Film Before and After Carbonization: Effect of Acriflavine Content

Taeniolite/acriflavine complexes (TAC) intercalated with various amounts of acriflavine were synthesized. The films derived from these complexes and raw taeniolite (TNL) as a reference were heated (carbonized) below 1273 K under a nitrogen atmosphere, followed by measurements of mechanical properties and electrical resistivity. Compared with TNL film, TAC films, especially with an amount of acriflavine equivalent to the cation exchange capacity of TNL, showed higher thermostability, higher flexibility, lower tensile strength, and larger modulus of toughness. Electrical resistivities of TAC films decreased remarkably after heating to 873 K or higher, in contrast to no change for TNL film. After heating to 1073 K, the electrical resistivities of TAC films clearly decreased with an increase of acriflavine content. This difference disappeared after heating to 1273 K. These behaviors are discussed on the basis of X-ray diffraction, IR spectroscopy. SEM observation, and so on.