SURFACE MODIFICATION OF CaCO3 WITH DENDRITIC CARBOXYLIC ACIDS
摘要
Nanometer calcium carbonate was modified with Frechet type polyether dendrons bearing a COOH group at the focal point by a wet-coating technique in dichloromethane at room temperature. The interaction between CaCO3 and the dendritic modifier was proven by IR and mass spectroscopy of the modified CaCO3 after thorough extraction with dichloromethane. The amount of tightly bonded organic modifier was estimated by TGA. It was shown that the amount of bonded molecules decreased with increasing generation number due to the larger number of branches. Compared to unmodified CaCO3, the modified CaCO3 possess different dispersibility in water and in organic solvents.
引用本文（GB/T 7714）
Zhaoxia, Guo, Jian JIAN, 等. SURFACE MODIFICATION OF CaCO3 WITH DENDRITIC CARBOXYLIC ACIDS[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2002.
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