Nucleation and selective growth of polymorphs of calcium carbonate on organic-inorganic hybrid films

被引：1

作者：

Martinez-Rubi, Yadienka ^{[1
,3
]}

Retuert, Jaime ^{[1
,3
]}

Azdani-Pedram, Mehrdad ^{[1
,2
]}

Barbosa, Miguel ^{[4
]}

Arias, Jose Luis ^{[1
,5
]}

机构：

[1] Univ Chile, Ctr Adv Interdisciplinary Res Mat CIMAT, Santiago, Chile

[2] Univ Chile, Fac Ciencias Quim & Farmaceut, Santiago, Chile

[3] Univ Chile, Fac Ciencias Fis & Matemat, Santiago, Chile

[4] Univ Chile, Fac Ciencias, Santiago, Chile

[5] Univ Chile, Fac Vet & Anim Sci, Santiago, Chile

来源：

JOURNAL OF THE CHILEAN CHEMICAL SOCIETY | 2008年 / 53卷 / 01期

关键词：

chitosan; organic-inorganic hybrid materials; calcium carbonate; biomineralization;

D O I：

10.4067/S0717-97072008000100005

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Inorganic/organic ternary hybrid films that are constituted of gelatin (G), poly(monomethyl itaconate) (PMMI) and silica (SiO2), are used as a solid matrix to study the crystalization of calcium carbonate (CaCO3). These films are transparent and stable in aqueous solutions due to the formation of interpenetrated networks. In these films it is possible to modulate the concentration of the different functional groups and the flexibility of the film structure by changing the composition. These changes in composition affected the morphology of the CaCO3 crystals and the polymorph obtained on the films. Depending on the film compositions, fried-egg-like or spherical calcite particles were observed on the films. Films of a specific composition induced the nucleation of vaterite, the less stable polymorph of calcium carbonate.

引用

页码：1353 / 1357

页数：5

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