189464

Poly(ethylene oxide)

average M_v ~4,000,000 (nominal), contains <1000 ppm BHT as inhibitor

• 동의어(들): Polyethylene oxide, PEO
• Linear Formula: (-CH₂CH₂O-)_n
• CAS Number: 25322-68-3
• MDL number: MFCD00081839
• UNSPSC 코드: 12352104
• PubChem Substance ID: 24851382
• NACRES: NA.23

속성

• 형태: powder
• Quality Level: 100
• 분자량: average M_v ~4,000,000 (nominal)
• 포함: <1000 ppm BHT as inhibitor; 100-1000 ppm BHT as inhibitor
• 점도: 1,650-5,500 cP, 1 % in H₂O(25 °C, Brookfield)(lit.)
• 전이 온도: T_m 65 °C
• density: 1.21 g/mL at 25 °C
• 작용기: hydroxyl
• SMILES string: [H]OCCO
• InChI: 1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
• InChI key: LYCAIKOWRPUZTN-UHFFFAOYSA-N

설명

일반 설명

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.

애플리케이션

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.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Gloves, type N95 (US)