What is poly acrylic acid used for?
Polyacrylic acid is considered to be a first mucoadhesive polymer and the protonated form at an acidic pH is responsible for mucoadhesion. It is used as artificial tears to treat dry eye syndrome. Polyacrylic acid forms the hydrogen bond between its –COOH groups and sialic –COOH groups of the mucin glycoprotein.
What is the pH of polyacrylic acid?
The pKa obtained from the titration data varied in a narrow range between 4.52 and 4.55, in good agreement with earlier work. The curves have the same behaviour, and so it can be confirmed that, regardless of the synthetic method, the PAA has the same pH dependence.
What is Enoic acid prop2?
2-propenoic acid prop-2-enoic acid. Acrylic Acid (stabilized with MEHQ) Acrylic Acid Sodium Salt. Acrylic acid, contains MEHQ as stabilizer. Acrylic acid, stab.
How is poly acrylic acid synthesized?
Poly(acrylic acid) is synthesized in water-borne system via radical polymerization reaction using potassium persulfate and sodium pyrosulfate as initiator and iron(II) sulfate pentahydrate as chain length regulator.
What is poly acrylic finish?
Polycrylic is the brand name of a Minwax water-based finish. Available in high gloss and satin finishes, it can be applied with a spray bottle or roller. Polycrylic offers protection of the wood along with faster drying times. It’s ideal for use on light wood surfaces like ash, maple and birch because it has no tint.
Is polyacrylic acid a plastic?
Poly(acrylic acid) (PAA; trade name Carbomer) is a polymer with the formula (CH2-CHCO2H)n. It is a derivative of acrylic acid (CH2=CHCO2H)….Polyacrylic acid.
| Names | |
|---|---|
| Other names PAA, PAAc, Acrysol, Acumer, Alcosperse, Aquatreat, Carbomer, Sokalan | |
| Identifiers | |
| CAS Number | 9003-01-4 |
| ChemSpider | none |
What is the structure of but 3 Enoic acid?
3-Butenoic acid
| PubChem CID | 32743 |
|---|---|
| Structure | Find Similar Structures |
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C4H6O2 |
| Synonyms | 3-Butenoic acid Vinylacetic acid But-3-enoic acid 625-38-7 Vinyl acetic acid More… |
What is polyacrylic acid made from?
Chemical Properties Polyacrylic acid is a large-molecular-weight compound called a polymer, which consists of small repeating units called monomers. The polyacrylate polymer used in diapers is constructed from the acrylic acid and sodium acrylate monomers.
Is poly acrylic acid hydrophobic?
The chemistry of PAA is more versatile and the coupling reactions can be carried out in both aqueous and organic media. Furthermore, under the ionized form, PAA is highly soluble in water even with hydrophobic content of as high as 20 mol %.
What are the names of the polymers of acrylic acid?
DISCLAIMER Poly(acrylic acid) NAMES AND IDENTIFIERS OF POLYMER POLYMER CLASS Polyacrylate COMMON NAMES Poly(acrylic acid), Acrysol, Acumer STRUCTURE BASED NAME Poly(prop-2-enoic acid)
What is the molecular formula for polyacrylic acid?
Polyacrylic acid Common Name Polyacrylic acid Polyacrylic acid Polyacrylic acid CAS Number 9003-01-4 Molecular Weight 72.06270 Density 1.09 (30% aq.) Boiling Point 116ºC Molecular Formula (C 3 H 4 O 2 )n Melting Point 106ºC MSDS Chinese USA Flash Point 61.6ºC
How is polyacrylic acid soluble in aqueous media?
Polyacrylic acid is a polyelectrolyte which is soluble in aqueous media at neutral pH, due to the ionization of the pendent carboxyl side chains. Carbopols are polymers of acrylic acid that have been cross-linked with polyalkanyl esters or divinyl glycol.
What kind of products can polyacrylic acid be used for?
Cross-linked polyacrylic acid has also been used in the processing of household products, including floor cleaners. Acrylic acid is also the main component of Superadsorbent Polymers (SAPs), cross-linked polyacrylates that can absorb and retain more than 100 times of their own weight in liquid.