POLYMERIC COBALT-SCHIFF-BASE AND COBALT-PORPHYRIN COMPLEXES AS A DIOXYGEN DEVICE

New functions of polymeric cobalt complexes were examined using their oxygen-binding reactions in the solid state. An oxygen-releasing devic e was prepared by compositing the oxygen-binding but electrically insu lating cobalt-Schiff-base or -porphyrin complex with a conductive carb on powder. The device quickly released the absorbed oxygen in response to an applied voltage. A polymer film containing the cobalt-Schiff-ba se complex reversibly stretched in response to the atmospheric oxygen concentration. The driving force of the stretching of the film was att ributed to the crystal structure change of the complex before and afte r the oxygen-binding.