at Google ScholarTitle data
Schenk, Anna ; Kim, Yi-Yeoun ; Kulak, Alexander N. ; Meldrum, Fiona C.:
Impurities in pluronic triblock copolymers can induce the formation of calcite mesocrystals.
In: Chemical Geology.
Vol. 294-295
(2012)
.
- pp. 259-262.
ISSN 0009-2541
DOI: https://doi.org/10.1016/j.chemgeo.2011.12.007
Abstract in another language
An interesting recent report by Zhou et al. (Chemical Geology, 2010, 279, 63-74) describes the formation of calcite mesocrystals with very well-defined, prismatic morphologies in the presence of F-68, a pluronic triblock copolymer. That this can be achieved with a polymer which is a linear, nonionic polyoxyethyleneâ polyoxypropylene runs counter to the current understanding that face-selective adsorption of a polymer on the precursor mineral building blocks is required for mesocrystal formation. In this paper we contrast the effect of analytical grade F-68 and the same polymer after purification by dialysis, and show that a strong morphological effect on calcite precipitation is only achieved with the analytical grade polymer. We therefore suggest that low molecular weight impurities present within analytical grade F-68 may have been responsible for the formation of CaCO3 mesocrystals rather than the F-68 macromolecules themselves.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Calcite; Mesocrystal; Calcium carbonate; Block copolymer |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professor Colloidal Systems > Junior Professor Colloidal Systems - Juniorprof. Dr. Anna Schenk Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professor Colloidal Systems |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science 500 Science > 540 Chemistry |
| Date Deposited: | 21 Feb 2017 09:49 |
| Last Modified: | 16 May 2022 12:38 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/36160 |