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
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764604
Polyethylenimin, linear
average Mn 2100, PDI <1.3
Synonym(e):
PEI
Größe auswählen
| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
1 g | Warenkorb auf Verfügbarkeit prüfen | € 153,00 |
Über diesen Artikel
Quality Segment
form
powder or solid
mol wt
average Mn 2100
feature
hydrophilic
mp
59-64 °C
transition temp
Tm 59-64 °C
PDI
<1.3
storage temp.
2-8°C
SMILES string
N1CC1
InChI
1S/C2H5N/c1-2-3-1/h3H,1-2H2
InChI key
NOWKCMXCCJGMRR-UHFFFAOYSA-N
General description
Application
- Wasserlösliches lineares Polyethylenimin als überlegenes bifunktionales Bindemittel für Lithium-Schwefel-Batterien: Demonstriert die Nützlichkeit von wasserlöslichem linearem Polyethylenimin als effektives bifunktionales Bindemittel, das die Zyklusstabilität und Effizienz von Lithium-Schwefel-Batterien verbessert, was für die Weiterentwicklung der Batterietechnologie von entscheidender Bedeutung ist (Liao et al., 2018).
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Dieser Artikel | |||
|---|---|---|---|
| description average Mn 2100, PDI <1.3 | description average Mn 10,000, PDI ≤1.3 | description ~50% in H2O | description average Mn ~60,000 by GPC, average Mw ~750,000 by LS, 50 wt. % in H2O |
| form powder or solid | form solid | form liquid | form - |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. - | storage temp. - |
| mp 59-64 °C | mp 48-53 °C | mp - | mp - |
| mol wt average Mn 2100 | mol wt average Mn 10,000 | mol wt Mr 600,000-1,000,000 | mol wt average Mw ~750,000 by LS, average Mn ~60,000 by GPC |
| transition temp Tm 59-64 °C | transition temp - | transition temp - | transition temp - |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
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signalword
Danger
hcodes
Lagerklasse
10 - Combustible liquids
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1
flash_point_f
No data available
flash_point_c
No data available
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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Hi, I was wondering if this polymer comes as shown or if they are terminated with primary amine groups?
1 answer-
According to the supplier, the structure is exactly as depicted in the image on this product page.
Helpful?
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