Poly(2,6-dimethyl-1,4-phenylene oxide) (PPO)
polymerPoly(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.
automotive under-hood componentselectrical connectors and housingsappliance partsbusiness equipment housingschemical-resistant piping systemsthermal management applications
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | K | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Safety & Biocompatibility
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.