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181285

Sigma-Aldrich

Poly(acrylic acid)

average Mv ~450,000

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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
323667523925306223
Poly(acrylic acid) average Mv ~450,000

Sigma-Aldrich

181285

Poly(acrylic acid)

Poly(acrylic acid)

Sigma-Aldrich

323667

Poly(acrylic acid)

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

Sigma-Aldrich

306223

Poly(acrylic acid)

transition temp

Tg 106 °C

transition temp

Tg 106 °C

transition temp

-

transition temp

Tg 106 °C

crosslinking

~0.1 % cross-linked

crosslinking

-

crosslinking

-

crosslinking

~0.1 % cross-linked

mol wt

average Mv ~450,000

mol wt

-

mol wt

average Mw ~100,000

mol wt

average Mv ~3,000,000

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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Synthesis and characterization of P (MMA-AA) copolymers for targeted oral drug delivery.
Barba AA, et al.
Polymer Bull., 62(5), 679-688 (2009)
Solute diffusion in poly (vinyl alcohol)/poly (acrylic acid) interpenetrating networks.
Peppas NA, et al.
Macromolecules, 29(27), 8798-8804 (1996)
Christina M Kelliher et al.
Fungal biology, 124(5), 398-406 (2020-05-12)
Work on the filamentous fungus Neurospora crassa has contributed to or pioneered many aspects of research on circadian clock mechanism, a process that is functionally conserved across eukaryotes. Biochemical assays of the fungal circadian clock typically involve growth in liquid
A New Double-Responsive Block Copolymer Synthesized via RAFT Polymerization: Poly (N-isopropylacrylamide)-b lock-poly (acrylic acid)
Schili CM, et al.
Macromolecules, 37(21), 7861-7866 (2004)
T Inoue et al.
Journal of controlled release : official journal of the Controlled Release Society, 51(2-3), 221-229 (1998-08-01)
An AB block copolymer of oligo(methyl methacrylate) (oMMA) and poly(acrylic acid) (PAAc) has been synthesized. The block copolymer forms micelles in an aqueous medium, as confirmed by a fluorescence probe technique using pyrene. Doxorubicin hydrochloride was incorporated into the micelle

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