Controlled growth of calcium carbonate by poly(ethylenimine) at the air/water interface.
Two metastable calcium carbonate polymorphs, hemispherical vaterite and needle-like aragonite, are selectively formed at the air/water interface by the mediation of poly(ethyleneimine)(with molecular weights of 25000 and 2000, respectively) dissolved in supersaturated calcium bicarbonate solution.
Kun Park
Hyoung
H
Laboratory of Intelligent Interfaces, School of Chemistry and Molecular Engineering and Center for Molecular Catalysis, Seoul National University, Seoul 151-472, Korea.
Lee
Inhyung
I
Kim
Kwan
K