Investigation of the Mechanism of CaCO3 Crystallization Controlled by Polymer Lattices P(St-co-MAA)

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (2): 332.

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Investigation of the Mechanism of CaCO₃ Crystallization Controlled by Polymer Lattices P(St-co-MAA)

CHEN Ya-Kun¹, ZHAO Ying¹, WANG Du-Jin¹, XU Yi-Zhuang², SHEN Qiang³, WANG Jia-Jun¹, ZHENG Ai-Guo¹, WU Jin-Guang², XU Duan-Fu¹

1. State Key Laboratory of Polymer Physics & Chemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
2. State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
3. Key Laboratory for Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan 250100, China

Received:2002-09-30 Online:2003-02-24 Published:2003-02-24

Abstract

Abstract: In this paper, polymer latices P(St-co-MAA) were used to control the crystallization of CaCO₃, and the influence of the lattices on the crystallization habit and morphology was studied by combination of XRD, FTIR and SEM. The mechanism of the morphology transformation of CaCO₃ from calcite to vaterite with the increase of polar group content in latex was investigated. The concentrating effect of calcium ions on the latex surface inhibited the transformation from vaterite to calcite.

Key words: Polymer latex, Calcite, Vaterite, Crystal phase transformation

CLC Number:

O781

TrendMD:

CHEN Ya-Kun, ZHAO Ying, WANG Du-Jin, XU Yi-Zhuang, SHEN Qiang, WANG Jia-Jun, ZHENG Ai-Guo, WU Jin-Guang, XU Duan-Fu. Investigation of the Mechanism of CaCO₃ Crystallization Controlled by Polymer Lattices P(St-co-MAA)[J]. Chem. J. Chinese Universities, 2003, 24(2): 332.

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Investigation of the Mechanism of CaCO₃ Crystallization Controlled by Polymer Lattices P(St-co-MAA)

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