synthesis and characterization of molecularly imprinted polymers for phenoxyacetic acids分子印迹聚合物的合成和表征phenoxyacetic酸.pdf

Int. J. Mol. Sci. 2008, 9, 98-106 International Journal of Molecular Sciences ISSN 1422-0067 © 2008 by MDPI /ijms/ Synthesis and Characterization of Molecularly Imprinted Polymers for Phenoxyacetic Acids 1 2 3 3 1 Huiting Zhang , Tao Song , Fulin Zong , Tiechun Chen and Canping Pan * 1 Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100094, P.R. China 2 College of Chemistry, Beijing Normal University, Beijing 100085; P.R. China 3 Institute for the Control of Agrochemicals, Ministry of Agriculture, P.R. China * Author to whom correspondence should be addressed; E-mail: panc@, Fax: +86 10 Received: 13 February 2007; in Revised Form: 15 November 2007 / Accepted: 29 November 2007 / Published: 25 January 2008 Abstract: 2-methylphenoxyacetic acid (2-MPA), 2-methyl-4-chlorophenxyacetic acid (MCPA) and 4-chlorophenoxyacetic acid (4-CPA) were imprinted to investigate the cross-selectivities of molecularly imprinted polymers (MIPs). The result indicates that 2-MPA, which is similar in shape, size and functionality with phenoxyacetic herbicides, are suitable to be used as a suitable template to prepare the MIPs for retaining phenoxyacetic herbicides. To study the ion-pair interactions between template molecules