Poly(ethylene glycol) [MW ~ 20,000]

Poly(ethylene glycol) (PEG) is a hydrophilic polymer composed of repeating ethylene oxide units. It is highly water-soluble, biocompatible, and chemically versatile, making it widely used in medical, pharmaceutical, and industrial applications. PEG is available in various molecular weights, influencing its viscosity, solubility, and functionality.
Mw/Mn ~ 1.13 Applications: Pharmaceutical & Drug Delivery: Used as a drug carrier, solubilizer, and excipient in formulations. Biomedical & Biotechnology: Commonly utilized in surface coatings for biocompatibility, tissue engineering, and PEGylation of proteins. Cosmetics & Personal Care: Acts as a humectant, thickener, and skin-conditioning agent in lotions and creams.