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323667

Sigma-Aldrich

Poly(acrylic acid)

Synonyma:

PAA

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About This Item

Lineární vzorec:
(C3H4O2)n
Číslo CAS:
9003-01-4
MDL number:
MFCD00084394
UNSPSC Code:
12162002
PubChem Substance ID:
24859410
NACRES:
NA.23

mol wt

72.06 g/mol

Quality Level

200

viscosity

≤2000 cP

transition temp

Tg 106 °C

storage temp.

2-8°C

SMILES string

[Na+].[O-]C(=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) (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.

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Osvědčení o analýze (COA)

Lot/Batch Number
0000409238
0000409238
0000391995
0000389779
0000374466

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