Polyacrylic acid (PAA) is a hydrophilic colloidal solution, similar in properties to water-soluble natural gums. It is a clear, colorless, viscous stable solution. Applications include the modification of aqueous formulations for such end uses as cleaners, binders, adhesives, and emulsion paints.
P 04999 (OTTO) Poly(acrylic acid), 25% soln. in water [PAA ~50,000] Cas 9003-01-4 - used for the preparation of poly(N-isopropylacrylamide)-block-polyacrylic acid copolymer which responds to both temperature and pH stimuli. In addition to this, it is used in preparing block copolymer of oligo (methyl methacrylate)/PAA for micellar delivery of hydrophobic drugs.