Poly(2,6-dimethyl-1,4-phenylene oxide) (PPO)

Poly(2,6-dimethyl-1,4-phenylene oxide), commonly known as PPO or Noryl, is an amorphous engineering thermoplastic featuring a rigid aromatic backbone with methyl substituents that enhance thermal stability and stiffness. It is widely used in automotive under-hood components, electrical connectors, appliance housings, and business equipment where dimensional stability and resistance to heat and chemicals are critical; engineers select PPO over commodity plastics when applications demand superior thermal performance, low creep, and excellent dimensional retention across a wide operating range.