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Citation: XU Zhi-Feng, WU Shuang, WU Xiao-Hui, KUANG Dai-Zhi, ZHANG Fu-Xing, WANG Jian-Qiu. Preparation,Mechanism of Recognition and Binding Characteristics of Ferrocenecarboxylic Acid Imprinted Polymers[J]. Chinese Journal of Applied Chemistry, ;2010, 27(4): 384-389. doi: 10.3724/SP.J.1095.2010.90385 shu

Preparation,Mechanism of Recognition and Binding Characteristics of Ferrocenecarboxylic Acid Imprinted Polymers

Department of Chemistry and Material Sciences, Hengyang Normal University;Key Laboratory of Functional Organometallic Materials of Hengyang Normal University, College of Hunan Province, Hengyang 421008

Received Date: 8 June 2009
Revised Date: 15 July 2009

A series of ferrocenecarboxylic acid imprinted polymers from different functional monomers were prepared and their adsorption properties for the template were evaluated by equilibrium binding experiments.The results indicate that the imprinted polymer P₁,prepared with methacrylic acid as the functional monomer, exhibited a higher selectivity for ferrocenecarboxylic acid.The specific binding capacity(△C_P) and imprinting factor(IF) of P₁ are 23.18 μmol/g and 2.33,respectively.The results of competitive binding experiments show that P₁ can separate the template from its structural analogues.Scatchard analysis demonstrates that one equal class of binding sites was formed in the imprinted polymer in the studied concentration range.The dissociation constant and the apparent maximum number of the binding sites are 1.94 mmol/L and 92.33 μmol/g,respectively.The study suggests that the carboxyl of the template is the function group responsible for the formation of complementary interacting site in the polymer P₁,and the double hydrogen bonds formed between the carboxyl groups of ferrocenecarboxylic acid and methacrylic acid are the main interactions in the recognition process.
- molecular imprinting,
- ferrocenecarboxylic acid,
- methacrylic acid,
- molecular recognition
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