Unfortunately, the purity of this product is not tested.
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Wichtige Dokumente
323667
Poly(acrylsäure)
Poly(acrylic acid)
Synonym(e):
PAA
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5 G
€ 61,30
100 G
€ 124,00
250 G
€ 232,00
Alle Fotos(4)
Größe auswählen
Ansicht ändern
5 G
€ 61,30
100 G
€ 124,00
250 G
€ 232,00
About This Item
Lineare Formel:
(C3H4O2)n
CAS-Nummer:
MDL-Nummer:
UNSPSC-Code:
12162002
PubChem Substanz-ID:
NACRES:
NA.23
Empfohlene Produkte
Mol-Gew.
72.06 g/mol
Qualitätsniveau
Viskosität
≤2000 cP
Übergangstemp.
Tg 106 °C
Lagertemp.
2-8°C
SMILES String
[Na+].[O-]C(=O)C=C
InChI
1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1
InChIKey
NNMHYFLPFNGQFZ-UHFFFAOYSA-M
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Allgemeine Beschreibung
Polyacrylsäure (PAA) ist hygroskopisch, spröde, von Natur aus farblos mit Tg bei nahezu 106oC. Bei Temperaturen über 200 °C bis 250oC verliert sie Wasser und wird ein unlösliches quervernetztes Polyanhydrid. Die Löslichkeit von getrockneter PAA in Wasser nimmt mit steigender Temperatur zu. Konzentrierte Lösungen von PAA in Wasser sind von Natur aus thixotrop.
Anwendung
PAA kann zum Beispiel für folgende Anwendungen eingesetzt werden:
- Untersuchung der Diffusion von gelösten Substanzen in einem Polyvinylalkohol-PAA-Copolymerhydrogel[1]
- Synthese eines Poly(N-isopropylacrylamid)-Block-PAA-Copolymers, das sowohl auf Temperatur- als auch auf pH-Wert-Änderungen reagiert[2]
- Herstellung eines Block-Copolymers aus Oligo(methylmethacrylat) und PAA für den Transport hydrophober Medikamente in Mizellen[3]
- Als Verdickungsmittel für Klebstoffe.
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 1
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, type N95 (US)
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Analysenzertifikate (COA)
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We have discussed shortly the applications of 1:1 and 2:1 phyllosilicate material in membrane technology, as well as the basic geometric understanding of their layered structures.
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What is the purity?
1 answer-
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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
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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/449/386/product-dating-information-mk.pdfHelpful?
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What are the viscosity measurement conditions?
1 answer-
As mentioned in the "Properties" section of the Product Detail Page, the viscosity specification is ≤2000 cP. The viscosity of this product is measured by Brookfield Viscosity method at 25 C. The exact value will be listed on the lot specific Certificate of Analysis.
Please view the sample Certificate of Analysis: https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/323667-250GSLCM5381.pdf
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What is the Mw of Product 323667, is it also average Mw ~5,000?
1 answer-
The average molecular weight of this product is ~2000.
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What solvents is Poly(acrylic acid), Product 323667, soluble in?
1 answer-
This product is soluble in dioxane, ethanol, methanol, and water.
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What is the polydispersity of Product 323667, Poly(acrylic acid)?
1 answer-
Unfortunately, polydispersity has not been determined for this product.
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What is the tacticity of the polymer Poly(acrylic acid), Product 323667?
1 answer-
This product is atactic.
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What is the Department of Transportation shipping information for this product?
1 answer-
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.
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What are the end groups of the polymer Poly(acrylic acid), Product 323667?
1 answer-
Unfortunately, the end groups are not tested for.
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