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Key Documents

191973

Sigma-Aldrich

Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) solution

average Mw 2,000,000, 15 wt. % in H2O

Synonym(s):

2-Acrylamido-2-methyl-1-propanesulfonic acid polymer, 2-Acrylamido-2-methylpropanesulfonic acid polymer, PolyAMPS

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

mol wt

average Mw 2,000,000

concentration

15 wt. % in H2O

pH

1.0-3.0

surface tension

79.8 dyn/cm, 1 wt. %

viscosity

~200,000 cP, Brookfield RVT(lit.)

acid number

41‑45 mg KOH/g

SMILES string

CC(C)(CS(O)(=O)=O)NC(=O)C=C

InChI

1S/C7H13NO4S/c1-4-6(9)8-7(2,3)5-13(10,11)12/h4H,1,5H2,2-3H3,(H,8,9)(H,10,11,12)

Inchi Key

XHZPRMZZQOIPDS-UHFFFAOYSA-N

Application

Thickening agent for acidic or basic cleaning agents, friction reducing agent, water-based lubricant, mineral scale remover and suspension aid for pigments and fillers. Rheology control agent in water and some organic solvents.

Features and Benefits

Solutions are pseudoplastic but not thixotropic. Stable in 50% HCl solutions. Compatible with anionic and non-ionic thickeners, surfactants and preservatives.

Pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Skin Corr. 1A

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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Giancarlo Masci et al.
The journal of physical chemistry. B, 115(10), 2196-2204 (2011-02-23)
The radiowave dielectric properties of aqueous solutions of thermosensitive copolymers, consisting of poly(2-acrylamido-2-methylpropanesulfonate) [PAMPS] and poly(N-isopropylacrylamide) [PNIPAAM] with different block lengths, have been investigated over a broad temperature and frequency range. These copolymers PAMPS(n)-b-PNIPAAM(m) form temperature responsive aggregates (micelles) that
Katsuhisa Yoshikawa et al.
BMC musculoskeletal disorders, 14, 56-56 (2013-02-06)
It has been a common belief that articular cartilage tissue cannot regenerate in vivo. Recently, however, we have found that spontaneous hyaline cartilage regeneration can be induced in vivo by implanting a synthetic double-network (DN) hydrogel, which is composed of
Ryusei Imabuchi et al.
BMC musculoskeletal disorders, 12, 213-213 (2011-10-01)
We have recently found a phenomenon that spontaneous regeneration of a hyaline cartilage-like tissue can be induced in a large osteochondral defect by implanting a double-network (DN) hydrogel plug, which was composed of poly-(2-Acrylamido-2-methylpropanesulfonic acid) and poly-(N, N'-Dimetyl acrylamide), at
Go Kagata et al.
Colloids and surfaces. B, Biointerfaces, 56(1-2), 296-302 (2006-12-02)
The friction between two polyelectrolyte gels carrying the same or opposite sign of charges has been investigated using a rheometer. It is found that the friction was strongly dependent on the interfacial interaction between two gel surfaces. In the repulsive
Xian-Zheng Zhang et al.
Journal of materials science. Materials in medicine, 18(9), 1771-1779 (2007-05-08)
A new family of poly(NIPAAm-co-2-acrylamido-2-methyl-1-propanesulfonic acid) [P(NIPAAm-co-AMPSA)] hydrogels was synthesized by incorporating negative charged AMPSA to the backbone of the PNIPAAm-based hydrogel. The effect of polyelectrolyte (i.e., PAMPSA) on the thermosensitive property of PNIPAAm hydrogels was investigated. It was found

Articles

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

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