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323667 Aldrich

Poly(acrylic acid)

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Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Packaging

5, 100, 250 g in poly bottle

Application

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

General description

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.

Price and Availability


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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
AT4680000

Frequently Asked Questions

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. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
What is the appearance of Product 323667, Poly(acrylic acid)?
This product is a powder or crystalline powder and/or chunks.
What is the polydispersity of Product 323667, Poly(acrylic acid)?
Unfortunately, polydispersity has not been determined for this product.
What are the end groups of the polymer Poly(acrylic acid), Product 323667?
Unfortunately, the end groups are not tested for.
What is the tacticity of the polymer Poly(acrylic acid), Product 323667?
This product is atactic.
What solvents is Poly(acrylic acid), Product 323667, soluble in?
This product is soluble in dioxane, ethanol, methanol, and water.
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. 
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, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Protocols & Articles

Articles

Novel Inks for Direct-Write Assembly of 3-D Periodic Structures

New methods for materials fabrication at the micro- and nanoscale will drive scientific and technological advances in areas of materials science, chemistry, physics, and biology. The broad diversity ...
Prof. Jennifer A. Lewis
Material Matters 2008, 3.1, 4.
Keywords: Applications, Biomaterials, Capabilities, Coagulants, Coagulation, Deposition, Environmental, Materials Science, Methods, Photographs, Reductions, Semiconductor, Size-exclusion chromatography, Sol-gel, Support, Type

Peer-Reviewed Papers
15

References

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