Controlled crystallization of vaterite from viscous solutions of organic colloids
- 1 December 1990
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 5 (12) , 2928-2932
- https://doi.org/10.1557/jmr.1990.2928
Abstract
Precipitation of calcium carbonate from hydroxyethyl cellulose (HEC) containing aqueous solutions of CaCl2 and Na2CO3 resulted in an uncommon polymorph, vaterite. In contrast to precipitations without HEC, crystallization in the presence of HEC led to a shell-shaped body consisting of organized vaterite platelets. The artificial shell is a composite of stacks of vaterite and about 2% HEC. In the experimental arrangement used, HEC controlled both nucleation and crystal growth of vaterite. Concentration of HEC also affected the platelet's thickness which in turn influenced the shell's morphology as well. These results demonstrate the importance of organic-inorganic interface in controlling crystallization.Keywords
This publication has 11 references indexed in Scilit:
- Crystals in Gels and Liesegang RingsPhysics Today, 1990
- Controlled crystallization of CaCO3 under stearic acid monolayersNature, 1988
- Minerals for GrowthScience News, 1988
- Molecular recognition in biomineralizationNature, 1988
- Heterogeneous and Epitaxial Nucleation of Protein Crystals on Mineral SurfacesScience, 1988
- A chemical model for the cooperation of sulfates and carboxylates in calcite crystal nucleation: Relevance to biomineralizationProceedings of the National Academy of Sciences, 1987
- Crystal growth in gels and Liesegang ring formationJournal of Crystal Growth, 1986
- Langmuir Monolayers Designed for the Oriented Growth of Glycine and Sodium Chloride Crystals at Air/Water InterfacesMolecular Crystals and Liquid Crystals, 1986
- Interactions between acidic proteins and crystals: stereochemical requirements in biomineralization.Proceedings of the National Academy of Sciences, 1985
- The crystallization of sodium chloride from aqueous solution in the presence of polysaccharidesJournal of Crystal Growth, 1981