192023

Poly(acrylic acid) partial sodium salt solution

average M_w ~2,000 by GPC, 61-65 wt. % in H₂O

• Synonym(s): Acrylic acid-sodium acrylate copolymer, Sodium acrylate-acrylic acid copolymer
• CAS Number: 9033-79-8
• MDL number: MFCD00084394
• UNSPSC Code: 12162002
• PubChem Substance ID: 24851522
• NACRES: NA.23

Properties

• mol wt: average M_w ~2,000 by GPC
• composition: Na, 0.6%
• concentration: 61-65 wt. % in H₂O
• refractive index: n20/D 1.442
• density: 1.2 g/mL at 25 °C

Description

General description

Sodium salt of poly(acrylic acid) is a superabsorbent polymer. Superabsorbents are composed of crosslinked networks of hydrophilic polymers. It can absorb and retain a large capacity of water based fluids, the release of the absorbed fluids is tough even under an applied pressure.[1] Absorption capacity is inversely proportional to salt concentration and applied load.They are formed via solution or inverse-suspension polymerization techniques. †

Application

Sodium salt of poly (acrylic acid) may be used as a major component of non glare coatings for headlights.It acts as an antiscaling agents.[2]It′s effect of the salt on the crystal (Cu and MS metals) formation was studied.[2] General applications of these superabsorbents are in many fields such as agriculture and horticulture, sanitary goods, sealing composites, component of moisture barrier tapes and coatings, humidity control, gel actuators. and medicine for drug-delivery systems.[3]

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves