Poly(ethylene glycol) (PEG) is a synthetic linear polyether polymer derived from ethylene oxide, available in a wide range of molecular weights from low-viscosity liquids to high-molecular-weight resins. It is widely used in pharmaceuticals as a drug solubilizer and delivery vehicle, in cosmetics and personal care formulations, in industrial coatings and adhesives, and as a lubricant or plasticizer in manufacturing processes. Engineers select PEG for applications requiring biocompatibility, water solubility, low toxicity, and the ability to modify polymer backbone properties through molecular weight adjustment, making it particularly valuable in medical devices, controlled-release systems, and aqueous-based industrial formulations where conventional polymers are incompatible or ineffective.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 2.045 | MPa | — | ||
Elongation at Break(εf) | 387.1 | - | — | ||
Flexural Strength (MOR)(σf) | 141.0 | MPa | — | ||
Ultimate Tensile Strength(σUTS) | 22.56 | MPa | — | ||
Young's Modulus(E) | 18.30 | MPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 260.4 | K | — | ||
Melting Point / Solidus(Tm) | 325.3 | K | — | ||
Maximum Service Temperature(Tmax) | 522.2 | K | — | ||
Thermal Conductivity(k) | 9.000 | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.397 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.457 | - | — |