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Citation: ZHAO Jian-Xi, HUANG Shuang-Lu, PING Xian-Yin, HUANG Chang-Cang. Aliphatic Amine Modified Organic Bentonnite[J]. Chinese Journal of Applied Chemistry, ;2005, 22(9): 967-970. shu

Aliphatic Amine Modified Organic Bentonnite

1.
a Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002;
2.
b Department of Pharmaceutics, Fujian Medical University, Fuzhou

Corresponding author: ZHAO Jian-Xi,
Received Date: 15 November 2004
Available Online: 16 January 2005
Fund Project: 福建省教育厅重点资助项目(JA01003) (JA01003)

The experimental results about the aliphatic amine modified bentonnites show that the hydrophobic interaction between the alkyl chains obviously increases the molar adsorption quantities q(org) of the aliphatic amine in the domain between the layers of bentonnite and effectively expands the distance d between the layers.The q(org) and d increase with increasing acid content in the solutions.When the molar ratio of sulfuric acid to aliphatic amine in solution is fixed to be 0.92,q(org)s of dodecylamine,hexadecylamine and octadecylamine are 0.572,1.50 and 1.69 mmol/g,and d's are 2.21,2.51 and 2.58 nm,respectively.The latter values are much larger than that of Na-bentonnite(d=0.250 nm).
- bentonnite,
- aliphatic amine,
- organic modification
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