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181986

Sigma-Aldrich

Poly(ethylene oxide)

average MV 100,000 (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:
24850968
NACRES:
NA.23

Product Name

Poly(ethylene oxide), average Mv 100,000 (nominal), powder

form

powder

Quality Level

200

mol wt

average Mv 100,000 (nominal)

contains

200-500 ppm BHT as inhibitor

refractive index

n20/D 1.4539

viscosity

12-50 cP, 5 % in H2O(25 °C, Brookfield)(lit.)

transition temp

Tg −67 °C
Tm 65 °C

density

1.13 g/mL at 25 °C

Ω-end

hydroxyl

α-end

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 non-ionic hydrophilic linear polymer. It can be prepared by catalytic polymerization of ethylene oxide. Owing to its hydration and swelling properties, it is widely used in controlled drug delivery systems and bioadhesive materials.

Application

PEO can be used to:
  • Prepare polymer brushes with unique wormlike conformation which can be used in cancer drug delivery systems.
  • Synthesize polymer electrolytes for solid-state batteries and fuel cells.
  • Prepare biodegradable PEO/Ag nanocomposites forbiomedical and food packaging applications.

Features and Benefits

  • High water solubility
  • Non-toxicity
  • Rapid hydration
  • Insensitive to pH of the physiological system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW8707
MKCV7727
MKCW2937
MKCT9842
MKCT4963

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the solubility of Poly(ethylene oxide), Product 181986?

    According to the chemicals encyclopedia published by the Royal Society of Chemistry:13th Edition, this product is soluble in water and many organic solvents.

  4. What are the endgroups of this particular Poly(ethylene oxide), Product 181986?

    According to our supplier, the end groups of this product are hydroxy groups.

  5. What is the polydispersity of Poly(ethylene oxide), Product 181986?

    Unfortunately, our supplier has not determined the polydispersity of this product and it is not part of our specifications.

  6. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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Mud nests built by swallows (Hirundinidae) and phoebes (Sayornis) are stable granular piles attached to cliffs, walls, or ceilings. Although these birds have been observed to mix saliva with incohesive mud granules, how such biopolymer solutions provide the nest with
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Degradable Poly(ethylene glycol) Hydrogels for 2D and 3D Cell Culture

Progress in biotechnology fields such as tissue engineering and drug delivery is accompanied by an increasing demand for diverse functional biomaterials. One class of biomaterials that has been the subject of intense research interest is hydrogels, because they closely mimic the natural environment of cells, both chemically and physically and therefore can be used as support to grow cells. This article specifically discusses poly(ethylene glycol) (PEG) hydrogels, which are good for biological applications because they do not generally elicit an immune response. PEGs offer a readily available, easy to modify polymer for widespread use in hydrogel fabrication, including 2D and 3D scaffold for tissue culture. The degradable linkages also enable a variety of applications for release of therapeutic agents.

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Designing biomaterial scaffolds mimicking complex living tissue structures is crucial for tissue engineering and regenerative medicine advancements.

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