Synthesis and characterization of molecularly imprinted polymers for phenoxyacetic acids.
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 and functional monomer 4-vinylpiridine (4-VP), computational molecular modeling was employed. The data indicate that the cross-selectivities of MIPs for phenoxyacetic acid herbicides depend on the binding energies of complexes.
Zhang
Huiting
H
Department of Applied Chemistry, College of Science, P.R. China Agricultural University, Beijing 100094, P.R. China.
Song
Tao
T
College of Chemistry, Beijing Normal University, Beijing 100085, P.R.China.
Zong
Fulin
F
Institute for the Control of Agrochemicals, Ministry of Agriculture, P.R. China.
Chen
Tiechun
T
Institute for the Control of Agrochemicals, Ministry of Agriculture, P.R. China.
Pan
Canping
C
Department of Applied Chemistry, College of Science, P.R. China Agricultural University, Beijing 100094, P.R. China.