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189464

Sigma-Aldrich

Poly(ethylene oxide)

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

Synonym(s):
PEO
Linear Formula:
(-CH2CH2O-)n
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

form

powder

Quality Level

mol wt

average Mv ~4,000,000 (nominal)

contains

<1000 ppm BHT as inhibitor
100-1000 ppm BHT as inhibitor

viscosity

1,650-5,500 cP, 1 % in H2O(25 °C, Brookfield)(lit.)

transition temp

Tm 65 °C

density

1.21 g/mL at 25 °C

functional group

hydroxyl

SMILES string

[H]OCCO

InChI

1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2

InChI key

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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This Item
372781189472372803
Poly(ethylene oxide) average Mv ~4,000,000 (nominal), contains &lt;1000&#160;ppm BHT as inhibitor

Sigma-Aldrich

189464

Poly(ethylene oxide)

Poly(ethylene oxide) average Mv ~1,000,000 (nominal), powder

Sigma-Aldrich

372781

Poly(ethylene oxide)

Poly(ethylene oxide) average Mv ~5,000,000 (nominal), powder

Sigma-Aldrich

189472

Poly(ethylene oxide)

Poly(ethylene oxide) average Mv ~2,000,000 (nominal), powder

Sigma-Aldrich

372803

Poly(ethylene oxide)

mol wt

average Mv ~4,000,000 (nominal)

mol wt

average Mv ~1,000,000 (nominal)

mol wt

average Mv ~5,000,000 (nominal)

mol wt

average Mv ~2,000,000 (nominal)

transition temp

Tm 65 °C

transition temp

-

transition temp

Tm 65 °C

transition temp

-

density

1.21 g/mL at 25 °C

density

-

density

1.21 g/mL at 25 °C

density

-

functional group

hydroxyl

functional group

hydroxyl

functional group

hydroxyl

functional group

hydroxyl

contains

<1000 ppm BHT as inhibitor

contains

200-500 ppm BHT as inhibitor

contains

200-500 ppm BHT as inhibitor

contains

200-500 ppm BHT as inhibitor

General description

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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25G
Pack Size/Quantity

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MMYOMAG-74K-13

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Controlling the rheological property of suspensions consisting of colloidal particles and polymers is necessary in industry. Especially, gels induced by shear (shake-gel) are interesting phenomena in rheological field. To gain insight into the shake-gel phenomena of the aqueous suspensions of

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