Abstract
AbstractPolymer‐controlled crystallization of calcium carbonate crystals in solution by a gas diffusion method has been carried out in the presence of poly(sodium 4‐styrene sulfonate‐co‐N‐isopropylacrylamide) (PSS‐co‐PNIPAAM), and for the first time all three anhydrous polymorphs, calcite, vaterite, and aragonite could be selectively produced with a single additive. The selective polymorph synthesis can be nicely adjusted simply by concentration variations of polymer and calcium ions in the present reaction system. The simplicity of the system reveals the influence of Ca2+ and polymer concentration on the nucleation and crystal growth of CaCO3 via the balance between thermodynamic and kinetic reaction control. A single mechanistic framework employing particle mediated as well as ion mediated crystallization for polymorph control is proposed.
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Dates
Type | When |
---|---|
Created | 17 years, 4 months ago (April 15, 2008, 1:50 p.m.) |
Deposited | 1 year, 10 months ago (Oct. 17, 2023, 10:20 p.m.) |
Indexed | 1 week, 4 days ago (Aug. 19, 2025, 6:32 a.m.) |
Issued | 17 years, 4 months ago (April 23, 2008) |
Published | 17 years, 4 months ago (April 23, 2008) |
Published Online | 17 years, 4 months ago (April 23, 2008) |
Published Print | 17 years, 4 months ago (April 25, 2008) |
@article{Xu_2008, title={Polymorph Switching of Calcium Carbonate Crystals by Polymer‐Controlled Crystallization}, volume={18}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.200700895}, DOI={10.1002/adfm.200700895}, number={8}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Xu, An‐Wu and Dong, Wen‐Fei and Antonietti, Markus and Cölfen, Helmut}, year={2008}, month=apr, pages={1307–1313} }