If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
182028
Poly(ethylene glycol)
average MV 600,000 (nominal), powder, hydroxyl, BHT as inhibitor
Synonym(s):
Polyethylene oxide, PEO
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
Product Name
Poly(ethylene oxide), average Mv 600,000 (nominal), powder
form
powder
Quality Level
mol wt
average Mv 600,000 (nominal)
contains
200-500 ppm BHT as inhibitor
greener alternative product characteristics
Safer Solvents and Auxiliaries
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sustainability
Greener Alternative Product
viscosity
4,500-8,800 cP, 5 % in H2O(25 °C, Brookfield)(lit.)
transition temp
Tm 65 °C
Ω-end
hydroxyl
α-end
hydroxyl
application(s)
battery manufacturing
greener alternative category
SMILES string
[H]OCCO
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
General description
Application
- Bioabsorbable and injectable hydrogels for sustained drug release.
- PEO/graphene oxide composite electrolyte membrane for fuel cells.
- Poly(ethylene oxide)-b-poly(ε-caprolactone) (PEO-b-PCL) diblock copolymer. Losartan potassium encapsulated (PEO-b-PCL) copolymer can be used as a drug carrier.
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This Item | |||
|---|---|---|---|
| form powder | form powder | form powder | form powder |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| mol wt average Mv 600,000 (nominal) | mol wt average Mv 200,000 (nominal) | mol wt average Mv ~300,000 (nominal) | mol wt average Mv ~1,000,000 (nominal) |
| greener alternative category | greener alternative category | greener alternative category | greener alternative category |
| viscosity 4,500-8,800 cP, 5 % in H2O(25 °C, Brookfield)(lit.) | viscosity 65-115 cP, 5 % in H2O(25 °C, Brookfield)(lit.) | viscosity 600-1,200 cP, 5 % in H2O(25 °C, Brookfield)(lit.) | viscosity 400-800 cP, 2 % in H2O(25 °C, Brookfield)(lit.) |
| transition temp Tm 65 °C | transition temp Tm 65 °C | transition temp Tm 65 °C | transition temp - |
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Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Articles
Designing biomaterial scaffolds mimicking complex living tissue structures is crucial for tissue engineering and regenerative medicine advancements.
Electrospinning technique applications discussed, emphasizing control of nanofibers and assembly into 3D architectures.
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.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 182028-2.5KG | 04065274038063 |
| 182028-500G | 04061838755605 |
| 182028-250G | 04061838755599 |
| 182028-500G-PM | 04065270170316 |
| 182028-5G | 04061838755612 |
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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