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416002

Sigma-Aldrich

Poly(acrylic acid) solution

average Mw ~250,000, 35 wt. % in H2O

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Synonym(s):
PAA
Linear Formula:
(C3H4O2)n
CAS Number:
9003-01-4
MDL number:
MFCD00084394
UNSPSC Code:
12162002
PubChem Substance ID:
24866051
NACRES:
NA.23

form

viscous liquid

Quality Level

200

mol wt

average Mw ~250,000

concentration

35 wt. % in H2O

refractive index

n20/D 1.395

density

1.150 g/mL at 25 °C

SMILES string

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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General description

Poly(acrylic acid) solution (PAA) is an anionic polymer that can be synthesized by the free radical polymerization of acrylic acid. It has a swelling nature that tends to absorb and retain the water. Its high ion exchange capacity makes it useful in the formation of membranes.

Application

PAA can be used for a variety of applications such as gas sensors, electrical devices, and cosmetics.

Signal Word

Danger

Hazard Statements

H318,H335,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 1

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Poly (acrylic acid) nanofibers by electrospinning
Kim B, et al.
Materials Letters, 59(7), 829-832 (2005)
Electrospun fibrous polyacrylic acid membrane-based gas sensors
Ding B, et al.
Sensors and Actuators B, Chemical, 106(1), 477-483 (2005)
Water absorption, retention and the swelling characteristics of cassava starch grafted with polyacrylic acid
Witono JR, et al.
Carbohydrate Polymers, 103(1), 325-332 (2014)
Fast adsorption of methylene blue on polyacrylic acid-bound iron oxide magnetic nanoparticles
Mak S and Chen D
Dyes and Pigments, 61(1), 93-98 (2004)
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
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