Development of Chromogenic Copolymers for Optical Detection of Amines

New sensor membranes for detecting aliphatic amines have been developed by copolymerization of a polymerizable dye (see Figure) with various copolymers. Compared to existing optical sensor membranes they are reported to have a longer shelf life and are operationally more stable. The analyte recognition and color change are based on a reversible chemical reaction rather than a physical complexation.