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189456

Sigma-Aldrich

Poly(ethylene oxide)

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

Synonyma:

Polyethylene oxide, PEO

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About This Item

Lineární vzorec:
(-CH2CH2O-)n
Číslo CAS:
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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Související kategorie

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

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Osvědčení o analýze (COA)

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The acute hemodynamic effects of an intravenously (i.v.) injected poly(ethylene oxide), Polyox WSR N-60K (dose 50 mg/kg), were studied in the open-chest rat anesthetized with sodium pentobarbital. The injectate is one of four drag-reducing polymers known to augment in vitro
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