Chemical resistance is fair. A patented process for oxidative coupling of phenolic monomers is used by General Electric in formulating Noryl phenylene oxide-based thermoplastic resins. The basic phenylene oxide structure is shown below. This family of engineering materials is characterized by outstanding dimensional stability at elevated temperatures, broad temperature-use range, outstanding hydrolytic stability, and excellent dielectric properties over a wide range of frequencies and temperatures. These are produced by an amidation of diamines with dibasic acids, or polymerization of amino acids.
Nylon is strong and tough.
It resists abrasion, fatigue and impact. Nylon offers excellent chemical resistance with negligence permeation rates when used with organic solvents. However, it has poor resistance to strong mineral acids, oxidizing agents and certain salts. Both have remarkable chemical resistance. It makes superior stopcock and separatory funnel plugs.