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

Akiko Kotachi, Takashi Miura, Hiroaki Imai

Research output: Contribution to journalArticle

51 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 languageEnglish
Pages (from-to)1636-1641
Number of pages6
JournalCrystal Growth and Design
Volume6
Issue number7
DOIs
Publication statusPublished - 2006 Jul

Fingerprint

Calcium Carbonate
calcium carbonates
Calcium carbonate
acrylic acid
Polymorphism
Chitosan
Acrylics
aragonite
crystal structure
Acids
Crystal structure
calcite
carbopol 940
molecules
molecular weight
Molecules
Calcite
glass
Molecular weight
Glass

ASJC Scopus subject areas

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

Cite this

Polymorph control of calcium carbonate films in a poly(acrylic acid)-chitosan system. / Kotachi, Akiko; Miura, Takashi; Imai, Hiroaki.

In: Crystal Growth and Design, Vol. 6, No. 7, 07.2006, p. 1636-1641.

Research output: Contribution to journalArticle

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