Description
Polyaspartic acid (PAsp) is a bio-inspired polymer that mimics the structure of naturally occurring polypeptides. Today PAsp is manufactured in large industrial quantities and respective commercial products are used to inhibit and modulate CaCO3 precipitation in diverse technical settings. The properties of individual PAsp-products regarding inhibition performance and effect on crystal shape modulation was assessed by CaCO3 precipitation experiments using in-situ monitored CO2 degassing technique at distinct PAsp concentrations and degassing/precipitation rates. Thermodynamic reaction rate modeling coupled with crystal mineralogy and morphology analyses yields in (i) quantifying PAsp`s inhibition kinetics and capacity, (ii) substantial modulation of calcite crystal shape and (iii) the latter to provide local templates for vaterite nucleation and growth; depending on the properties of the individual PAsp.| Period | 4 Jul 2022 |
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| Event title | Carbonates: Geochemistry and Mineralogy of Calcium Carbonate Polymorphs |
| Event type | Workshop |
| Location | Veszprem, HungaryShow on map |
| Degree of Recognition | Regional |