poly(ethylene oxide)
polymerPoly(ethylene oxide), commonly known as PEO or polyethylene glycol (PEG) in its linear form, is a semicrystalline synthetic polymer composed of repeating ethylene oxide units. It is valued for its excellent water solubility, biocompatibility, and ability to form stable complexes with other molecules, making it distinctly different from most commodity plastics. PEO is widely used in pharmaceuticals (drug delivery systems and solid dispersions), cosmetics, personal care products, and industrial applications including adhesives and lubricants; engineers select it over alternatives when water solubility, low toxicity, and polymer chain flexibility are critical design requirements.
drug delivery systemspharmaceutical formulationswater-soluble packagingcosmetics and personal carebiomedical devicesindustrial lubricants and binders
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | — | - | — | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | — | — | |
Young's Modulus(E) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | K | — | — | |
Melting Point / Solidus(Tm) | — | K | — | — | |
Maximum Service Temperature(Tmax) | — | K | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | — | - | — | — |
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.