189464

Poly(ethylene oxide)

average M_V 4,000,000 (nominal), powder, hydroxyl, BHT as inhibitor

• Synonyme(s) : Polyethylene oxide, PEO
• Formule linéaire : (-CH₂CH₂O-)_n
• Numéro CAS: 25322-68-3
• Numéro MDL: MFCD00081839
• Code UNSPSC : 12352104
• ID de substance PubChem : 24851382
• Nomenclature NACRES : NA.23

Propriétés

• product name: Poly(ethylene oxide), average M_v ~4,000,000 (nominal), contains <1000 ppm BHT as inhibitor
• Forme: powder
• Niveau de qualité: 100
• Poids mol.: average M_v ~4,000,000 (nominal)
• Contient: <1000 ppm BHT as inhibitor; 100-1000 ppm BHT as inhibitor
• Viscosité: 1,650-5,500 cP, 1 % in H₂O(25 °C, Brookfield)(lit.)
• Température de transition: T_m 65 °C
• Densité: 1.21 g/mL at 25 °C
• Groupe fonctionnel: hydroxyl
• Chaîne SMILES: [H]OCCO
• InChI: 1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
• Clé InChI: LYCAIKOWRPUZTN-UHFFFAOYSA-N

Description

Description générale

Poly (ethylene oxide) (PEO) is a crystalline thermoplastic polymer. It is usually available over a wide range of molecular weights; the higher molecular weight entities are called poly (ethylene oxide), poly-oxyethylene or polyoxirane.

Application

PEO may be used to afford PEO-salt complexes which are act as polymeric electrolytes to be used for alkali metal rechargeable batteries. PEO-polyester micelles have been reportedly used for drug delivery. PEO hydrogels have been reported to be used for culture media, replacing agar. Cross-linked PEO may be used for drug delivery and blood filtration. Compounds form association complexes with high molecular weight PEO; for example:

• bromine combines with PEO in controlled release,
• carboxymethyl dextran and carechol tannis form complexes with PEO to act as adhesives,
• copolymer of methyl vinyl ether and maleic anhydride form complex with PEO for its use in microencapsulation of non aqueous inks.

Industrially, PEO may be used to modify bituminous emulsion in paving compositions and as a dispersant for calamine lotion.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)