Fast FTIR imaging is a useful technique for the characterization of multicomponent systems undergoing dynamic changes, such as diffusion and dissolution. The characterization of polymer dissolution is important and a wide range of experimental techniques have been employed to observe and record the behavior of polymer dissolution. The detector systems for fast FTIR imaging are rapidly being improved so that images can be obtained on the order of seconds. making fast FTIR a powerful tool for a wide range of imaging applications.