Overview
Polyoxyethylene copolymer is a synthetic polymer formed by the copolymerization of ethylene oxide with other monomers. This versatile compound belongs to the family of polyether compounds and is widely valued for its surfactant properties. The material's structure can be tailored during production to achieve specific molecular weights and properties, making it adaptable for various industrial applications. Its amphiphilic nature allows it to function as an effective emulsifier and stabilizer in numerous formulations.
Physical and Chemical Properties
Polyoxyethylene copolymers typically appear as white or off-white solids with waxy consistency. Their physical state can range from powders to pastes depending on the molecular weight and composition. The compounds exhibit excellent water solubility and are stable under normal conditions. They demonstrate low toxicity and are generally considered biodegradable, though degradation rates vary depending on molecular weight and environmental conditions.
Main Applications
In the pharmaceutical industry, polyoxyethylene copolymers serve as excipients in tablet formulations and as solubilizers for poorly water-soluble drugs. They help improve drug bioavailability and control release rates. The cosmetics industry utilizes these copolymers in creams, lotions, and shampoos for their emulsifying and thickening properties. In industrial applications, they function as wetting agents, dispersants, and antistatic agents in textile processing and other manufacturing processes.
Safety and Storage
While generally considered safe for most applications, proper handling procedures should be followed. Workers should avoid prolonged skin contact and inhalation of dust particles. Storage recommendations include keeping containers tightly sealed in cool, dry areas away from strong oxidizers. Bulk storage should maintain temperatures below 40°C to prevent caking or melting. Shelf life typically exceeds two years when stored properly.
B2B Procurement Guide
When sourcing polyoxyethylene copolymers, buyers should specify required molecular weight ranges and purity levels. Technical datasheets should provide detailed information about copolymer composition and performance characteristics. Quality certifications such as USP/NF, EP, or JP standards may be required for pharmaceutical applications. Bulk purchasing typically offers cost advantages, with discounts available for quantities exceeding 500kg. Lead times vary but generally range from 2-4 weeks for standard grades.
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