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416010

Sigma-Aldrich

Poly(acrylic acid, sodium salt) solution

average Mw ~1,200, 45 wt. % in H2O

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Synonym(s):
PAA, Sodium polyacrylate
Linear Formula:
[CH2CH(CO2Na)]n
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

form

viscous liquid

mol wt

average Mw ~1,200

concentration

45 wt. % in H2O

refractive index

n20/D 1.43

density

1.32 g/mL at 25 °C

SMILES string

[Na]OC(=O)C=C

InChI

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

InChI key

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

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Application

Poly(acrylic acid, sodium salt) solution has been used to study the mechanism of formation of supramolecularaggregates of polyacrylic acid(PAA) in the presence of Fe(lll). This supramolecular association traps all Fe(lll) and prevents the precipitation of Fe (OH)3.The chelation capacity of PAA can be exploited to inhibit the precipitation ofhematite and other iron oxides.

Itcan be used as a draw solute in forward osmosis process due to its flexibilityin structural configuration and high solubility in water. They can be preferredover conventional ionic salts as they can produce comparable water flux andmuch lower reverse leakages.

It can also be used to study the effect of the molecular weight of PAAon crystal nucleation and the growth of CaCO3 during thecrystallization process.

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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Lei Liu et al.
ACS nano, 7(2), 1368-1378 (2013-01-04)
Hierarchical FeOOH nanostructure array films constructed by different nanosized building blocks can be synthesized at the air-water interface via a bio-inspired gas-liquid diffusion method. In this approach, poly(acrylic acid) (PAA) as a crystal growth modifier plays a crucial role in
Chunjiao Zhou et al.
Journal of nanoscience and nanotechnology, 13(7), 4627-4633 (2013-08-02)
Poly(acrylic acid) (PAA) coated-Fe3O4 superparamagnetic nano-composites were synthesized through a solvothermal technique by using cheap and environmental friendly iron salts and PAA. Each nano-composite was composed of many small primary nanocrystals. The as-synthesized products were characterized by X-ray diffraction (XRD)
Serhat Elcicek et al.
Experimental parasitology, 133(3), 237-242 (2012-12-15)
Polyacrylic acid (PAA) is one of the anionic synthetic polyelectrolytes and is used in various immunological and pharmaceutical applications. PAA has been used as adjuvant in veterinary vaccines, in particular. However, to our knowledge, there are no studies that document
Michael Dietzsch et al.
Langmuir : the ACS journal of surfaces and colloids, 29(9), 3080-3088 (2013-02-08)
Scale formation, the deposition of certain minerals such as CaCO3, MgCO3, and CaSO4·2H2O in industrial facilities and household devices, leads to reduced efficiency or severe damage. Therefore, incrustation is a major problem in everyday life. In recent years, double hydrophilic
Yiding Ma et al.
Langmuir : the ACS journal of surfaces and colloids, 29(9), 2946-2954 (2013-01-29)
In principle, incorporation of comb-like block copolymers in multilayer polyelectrolyte films can both increase film thickness relative to coatings containing linear polymers and provide more swollen films for increased sorption of proteins. In the absence of added salt, alternating adsorption

Articles

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Recently, layer-by-layer (LbL) assembly has emerged as a versatile, gentle and, simple method for immobilization of functional molecules in an easily controllable thin film morphology.1,2 In this short review, we introduce recent advances in functional systems fabricated by using the mild, yet adaptable LbL technique.

We present an article that discusses two applications in particular; first, using these layers as polyelectrolyte membranes to control permeability.

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