Polymorph control of calcium carbonate films in a poly(acrylic acid)-chitosan system

Akiko Kotachi; Takashi Miura; Hiroaki Imai

doi:10.1021/cg050528l

Polymorph control of calcium carbonate films in a poly(acrylic acid)-chitosan system

Akiko Kotachi, Takashi Miura, Hiroaki Imai

Department of Applied Chemistry

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52 Citations (Scopus)

Abstract

We successfully controlled the crystal structure of calcium carbonate films grown on a 260 °C-baked chitosan using a single chemical species of poly(acrylic acid) (PAA) as a soluble agent. The planar morphology of the calcium carbonate films was basically ascribed to the guided growth by PAA molecules anchored to chitosan on a glass substrate. Selective production of a particular crystal structure, such as calcite, aragonite, or vaterite, was achieved by variation of the molecular weight of PAA and the temperature of the solution. The control of the polymorphs was ascribed to a templating effect due to the arrangement of PAA molecules anchored on the surface of chitosan.

Original language	English
Pages (from-to)	1636-1641
Number of pages	6
Journal	Crystal Growth and Design
Volume	6
Issue number	7
DOIs	https://doi.org/10.1021/cg050528l
Publication status	Published - 2006 Jul 1

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ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Cite this

Kotachi, A., Miura, T., & Imai, H. (2006). Polymorph control of calcium carbonate films in a poly(acrylic acid)-chitosan system. Crystal Growth and Design, 6(7), 1636-1641. https://doi.org/10.1021/cg050528l

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10.1021/cg050528l