17 research outputs found
Structure and Properties of Nanocomposites Prepared via the Environmental Crazing of Poly(ethylene terephthalate) in Solutions of Polyelectrolyte Complexes
Phosphorescent Oxygen Sensors Based on Nanostructured Polyolefin Substrates
New phosphorescent oxygen-sensitive materials based on nanostructured high density polyethylene and polypropylene films are described. The polymer substrates undergo treatment by a solvent crazing process to create a well-developed network of controlled, nanometer-size pores. Indicator dye molecules are then embedded by physical entrapment in such nanostructures which subsequently can be healed. Such sensors demonstrate improved working characteristics and allow simple, cost-efficient production and disposable use. They are well suited for large-scale applications such as nondestructive control of residual oxygen and "smart" packaging