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323667

Sigma-Aldrich

Poly(acrylic acid)

Poly(acrylic acid)

Synonyme(s) :

PAA

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5 G
76,70 $
100 G
184,00 $
250 G
321,00 $

About This Item

Formule linéaire :
(C3H4O2)n
Numéro CAS:
9003-01-4
Numéro MDL:
MFCD00084394
Code UNSPSC :
12162002
ID de substance PubChem :
24859410
Nomenclature NACRES :
NA.23

76,70 $

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Devis pour commande en gros

Poids mol.

72.06 g/mol

Niveau de qualité

200

Viscosité

≤2000 cP

Température de transition

Tg 106 °C

Température de stockage

2-8°C

Chaîne SMILES 

[Na+].[O-]C(=O)C=C

InChI

1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1

Clé InChI

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

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Description générale

Poly (acrylic acid) (PAA) is hygroscopic, brittle and colorless in nature with Tg at nearly 106oC. At temperatures above 200 to 250oC, it loses water and becomes an insoluble crosslinked polymer anhydride. Solubility of dried PAA in water increases with rise in temperatures. Concentrated solutions of PAA in water is thixotropic in nature.

Application

Applications of PAA may include:
  • to study solute diffusion in Polyvinyl alcohol/PAA copolymer hydrogel[1]
  • synthesizing poly(N-isopropylacrylamide)-block-PAA copolymer which responds to both temperature and pH stimuli[2]
  • in preparing block copolymer of oligo (methyl methacrylate)/PAA for micellar delivery of hydrophobic drugs[3]
  • as thickening agent for adhesives.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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Certificats d'analyse (COA)

Lot/Batch Number
0000409238
0000409238
0000391995
0000389779
0000374466

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Consulter la Bibliothèque de documents

Nan Liu et al.
Nanoscale, 11(14), 6794-6801 (2019-03-26)
Sodium gadolinium fluoride (NaGdF4) nanoparticles are promising candidates as T1 shortening magnetic resonance imaging (MRI) contrast agents due to the paramagnetic properties of the Gd3+ ion. Effects of size and surface modification of these nanoparticles on proton relaxation times have
T Inoue et al.
Journal of controlled release : official journal of the Controlled Release Society, 51(2-3), 221-229 (1998-08-01)
An AB block copolymer of oligo(methyl methacrylate) (oMMA) and poly(acrylic acid) (PAAc) has been synthesized. The block copolymer forms micelles in an aqueous medium, as confirmed by a fluorescence probe technique using pyrene. Doxorubicin hydrochloride was incorporated into the micelle
A New Double-Responsive Block Copolymer Synthesized via RAFT Polymerization: Poly (N-isopropylacrylamide)-b lock-poly (acrylic acid)
Schili CM, et al.
Macromolecules, 37(21), 7861-7866 (2004)
P L Zeeuwen et al.
The Journal of investigative dermatology, 116(5), 693-701 (2001-05-12)
Using serial analysis of gene expression on cultured human keratinocytes we found high expression levels of genes putatively involved in host protection and defense, such as proteinase inhibitors and antimicrobial proteins. One of these expressed genes was the recently discovered
Yanxia Wang et al.
International journal of pharmaceutics, 441(1-2), 170-180 (2012-12-15)
A novel galactose-decorated cross-linked micelles (cl-micelles) with ionic cores using cystamine (Cys) as a biodegradable cross-linker was prepared by using block ionomer complexes of poly(ethylene glycol)-b-poly(2-acryloxyethyl-galactose)-b-poly(acrylic acid) (PEG-b-PAEG-b-PAA) and Ca(2+) (PEG-b-PAEG-b-PAA cl-micelles/Cys). Doxorubicin (DOX) was successfully incorporated into the ionic
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Questions

1–10 of 11 Questions  

  1. What is the purity?

    1 answer

    1. Unfortunately, the purity of this product is not tested.

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  3. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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.pdf

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  4. What are the viscosity measurement conditions?

    1 answer

    1. 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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  5. What is the Mw of Product 323667, is it also average Mw ~5,000?

    1 answer

    1. The average molecular weight of this product is ~2000.

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  6. What solvents is Poly(acrylic acid), Product 323667, soluble in?

    1 answer

    1. This product is soluble in dioxane, ethanol, methanol, and water.

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

    1 answer

    1. 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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  8. What is the polydispersity of Product 323667, Poly(acrylic acid)?

    1 answer

    1. Unfortunately, polydispersity has not been determined for this product.

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  9. What is the tacticity of the polymer Poly(acrylic acid), Product 323667?

    1 answer

    1. This product is atactic.

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  10. What is the appearance of Product 323667, Poly(acrylic acid)?

    1 answer

    1. This product is a powder or crystalline powder and/or chunks.

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1–10 of 11 Questions  

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