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Citation: JIANG Xi-Hua, CAO Jie-Ming, ZHENG Ming-Bo, GUO Jing, DENG Shao-Gao LIU Jin-Song, . Preparation of CaCO₃ Hollow Spheres in an Aqueous Ternary-Additive System[J]. Acta Physico-Chimica Sinica, ;2007, 23(08): 1281-1284. doi: 10.3866/PKU.WHXB20070827 shu

Preparation of CaCO₃ Hollow Spheres in an Aqueous Ternary-Additive System

1.
Nanomaterials Research Institute, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

Corresponding author: ,
Received Date: 23 January 2007
Available Online: 8 June 2007

Well-defined CaCO3 hollow spheres were prepared easily in a triblock copolymer P123, poly methacrylic acid (PMAA) and sodiumdodecylsulfate (SDS) ternary-additive system combined by the in situ polymerization of MAA monomers through addition of a certain amount of initiator. The as-prepared products were characterized with scanning electron microscopy and X-ray diffraction. The results suggested that the sizes of the calcite hollow spheres ranged from 0.5 to 2 μm. The wall of the sphere was constituted of many small round particles with the diameter from 25 to 35 nm and the wall thickness from 100 to 300 nm. Moreover, the formation of the hollow spherical structure was interpreted in terms of the core-shell mechanism.
- CaCO3; Hollow spheres; In situ polymerization; Template; Micelles
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Preparation of CaCO3 Hollow Spheres in an Aqueous Ternary-Additive System

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通讯作者: 陈斌, bchen63@163.com

Preparation of CaCO₃ Hollow Spheres in an Aqueous Ternary-Additive System