4,4'-Oxydianiline
4,4′-Oxydianiline is an organic compound with the formula O2. It is an ether derivative of aniline. This colourless solid is a useful monomer and cross-linking agent for polymers, especially the polyimides, such as Kapton.
Uses
The primary use lies in the production of polyimide and polyimide resins. These resins are used for their temperature-resistant properties and are utilized in products including wire enamels, coatings, film, adhesives, insulating varnishes, coated fabrics, flame-retardant fibers, oil sealants and retainers, insulation for cables and printed circuits, and laminates and composite for aerospace vehicles. 4,4′-Oxydianiline is used in the production of a wide variety of polymer resins.A specific reaction involving industrial use of 4,4′-oxydianiline is in the production of thermostable poly acids, which can be prepared from 4,4′-oxydianiline, pyromellitic dianhydride, and diisocyanates. These poly acids can be used as intermediates in the syntheses of polys:
Other applications of 4,4′-oxydianiline include the production of polyimide resins, as an intermediate in the manufacture of epoxy resins and adhesives, and in the production of aromatic polyether imides.