Polyacrylic acid

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Poly(acrylic acid)
File:Polyacrylic acid.png
style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers
CAS number 9003-01-4
style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Molecular formula (C3H4O2)n
Molar mass variable
style="background: #F8EABA; text-align: center;" colspan="2" | Hazards
EU classification Irritant Xi
R-phrases R36 R37 R38
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Poly(acrylic acid) or PAA is a type of polymer. The monomer of poly(acrylic acid) is acrylic acid. In a water solution at neutral pH, many of the side chains of PAA will lose their protons and acquire a negative charge. This makes PAA a polyelectrolyte.

Dry PAA is a white solid. It is capable of absorbing many times its weight in water, and hence is used in disposable diapers[1].

See also

References

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  1. http://pslc.ws/macrog/acrylate.htm