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181285

Sigma-Aldrich

Poly(acrylic acid)

average Mv ~450,000

Synonym(s):
PAA
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

crosslinking

~0.1 % cross-linked

Quality Level

mol wt

average Mv ~450,000

viscosity

350-2500 cP

transition temp

Tg 106 °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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This Item
306215306223523925
Poly(acrylic acid) average Mv ~450,000

Sigma-Aldrich

181285

Poly(acrylic acid)

Poly(acrylic acid) average Mv ~1,250,000

Sigma-Aldrich

306215

Poly(acrylic acid)

Poly(acrylic acid) average Mv ~3,000,000

Sigma-Aldrich

306223

Poly(acrylic acid)

viscosity

350-2500 cP

viscosity

800-11,000 cP

viscosity

30,000-40,000 cP

viscosity

-

transition temp

Tg 106 °C

transition temp

Tg 106 °C

transition temp

Tg 106 °C

transition temp

-

crosslinking

~0.1 % cross-linked

crosslinking

~0.1 % cross-linked

crosslinking

~0.1 % cross-linked

crosslinking

-

mol wt

average Mv ~450,000

mol wt

average Mv ~1,250,000

mol wt

average Mv ~3,000,000

mol wt

average Mw ~100,000

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

200

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

Poly (acrylic acid) (PAA)/Poly methyl methacrylate copolymers are used for drug delivery.
Other applications 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 Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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