Poly(acrylic acid)
Synonym(s):2-Propenoic acid homopolymer;PAA
- CAS NO.:9003-01-4
- Empirical Formula: C5H10O2
- Molecular Weight: 102.1317
- MDL number: MFCD00084394
- EINECS: 618-347-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-05-20 18:13:44
What is Poly(acrylic acid)?
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.
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. The sodium, potassium, and ammonium salts are effective thickeners and dispersants useful in both natural and synthetic latex systems. PAA in ceramic applications improves dry strength, dispersant action, and improved workability of the clays. PAA is stable to hydrolysis and is not susceptible to bacterial degradation.
The Uses of Poly(acrylic acid)
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
Properties of Poly(acrylic acid)
Melting point: | 95 °C |
Boiling point: | 116 °C |
Density | 1.2 g/mL at 25 °C |
Flash point: | 100 °C |
storage temp. | 2-8°C |
solubility | Swellable in water and glycerin and, after neutralization,
in ethanol (95%). Carbomers do not dissolve but merely
swell to a remarkable extent, since they are three-dimensionally
crosslinked microgels. |
form | Powder |
color | White |
Water Solubility | Soluble in water. |
Safety information for Poly(acrylic acid)
Signal word | Danger |
Pictogram(s) |
Health Hazard GHS08 |
GHS Hazard Statements |
H340:Germ cell mutagenicity H350:Carcinogenicity |
Precautionary Statement Codes |
P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. P280:Wear protective gloves/protective clothing/eye protection/face protection. P308+P313:IF exposed or concerned: Get medical advice/attention. P405:Store locked up. P501:Dispose of contents/container to..… |
Computed Descriptors for Poly(acrylic acid)
InChIKey | WLAMNBDJUVNPJU-UHFFFAOYSA-N |
Abamectin manufacturer
NB Healthcare Pvt Ltd
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Maxwell Additives Pvt. Ltd
Gloria Interchem Pvt Ltd
REXIN Laboratories (Redson Group)
Acuro Organics Limited
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