- Sodium poly(aspartate)
Sodium poly(aspartate) is a
condensation polymerbased on aspartic acid. The polymerizationreaction is an example of a step-growth polymerizationto a polyamideand in one practical procedure Ref|1 aspartic acid is simply heated to 180 °Cresulting in waterrelease and the formation of a poly(succinimide) with succinimide repeating units. In the subsequent step this polymer is reacted with sodium hydroxidein water which results in partial cleavage of the amidebonds. Two different bonds (α and β) are hydrolyzed resulting in a sodium poly(aspartate) copolymerwith 30% α-linkages and 70% β-linkages.
Sodium poly(aspartate) is used as an
anti-scaling agent. It is a chelating agent.
# "A Green Polymerization of Aspartic Acid for the Undergraduate Organic Laboratory " George D. Bennett J. Chem. Educ. 2005 82 1380 [http://jchemed.chem.wisc.edu/Journal/Issues/2005/Sep/abs1380.html Abstract]
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