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Sigma-Aldrich

Poly(ethylene oxide)

average MV 900,000 (nominal), powder, hydroxyl, BHT as inhibitor

Synonym(s):

Polyethylene oxide, PEO

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About This Item

Linear Formula:
(-CH2CH2O-)n
CAS Number:
25322-68-3
MDL number:
MFCD00081839
UNSPSC Code:
12352104
PubChem Substance ID:
24851381
NACRES:
NA.23

product name

Poly(ethylene oxide), average Mv ~900,000 (nominal), powder

form

powder

mol wt

average Mv ~900,000 (nominal)

contains

200-500 ppm BHT as inhibitor

viscosity

8,800-17,600 cP, 5 % 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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General description

Poly(ethylene oxide) is a synthetic hydrophilicpolymer available in a number of molecular weights. It can be obtained by thering-opening polymerization of ethylene oxide. This biocompatible polymer can be widely used in the field of biomedical research,tissue engineering and surface functionalization.

Application

PEO can be used to prepare polymer electrolyte systems for energy storage and conversion devices due its low glass transition temperature and ability to form complex with many alkaline salts.

Owing to its hydration and swelling properties, it is widely used as a precursor to prepare block copolymer micelles for selective drug and gene delivery.

Itcan also be used to fabricate nanofibrous membranes for the adsorption of heavymetal ions.

Features and Benefits

  • Excellent polymer chain flexibility
  • Low toxicity
  • High solvation power
  • Lowglass transition temperature

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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