Study on the Choice of Functional Monomer before Preparation of Myclobutanil Molecularly Imprinted Polymer
GAO Wen-hui1,2, LIU Bo1,2, LI Xing-feng1,2, HAN Jun-hua1,2, JIA Ying-min1,2*
1. College of Biological Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China 2. R&D Center for Fermentation Engineering of Hebei Province, Shijiazhuang 050018, China
Abstract：To prepare myclobutanil molecularly imprinted polymer, a method was established for the choice of the appropriate functional monomer and its dosage. UV spectra was applied to study the combination form，the effect intensity, the optimal concentration ratio and the numbers of binding sites between myclobutanil and methyl acrylic acid (MAA) or acrylamide (AM) functional monomer. The results showed that hydrogen-bonding interaction could be formed between myclobutanil and methyl acrylic acid (MAA) or acrylamide (AM) functional monomer. The π electron of the triazole ring conjugated double bond in myclobutanil could transit to π* conjugate antibonding orbital when it absorbed energy. The formation of hydrogen bond could make π→π* absorption band transit. Maximum absorption wavelength produced red shift with the increase in the functional monomer concentration in the system. The research revealed that the optimal concentration ratios between myclobutanil and the two monomers were ｃ(M)∶ｃ(MAA)=1∶4, ｃ(M)∶ｃ(AM)=1∶2. Myclobutanil and the both the functional monomers had the bonding ability, and strong bonding force. The prepared molecularly imprinted polymer using AM as a functional monomer had better stability and specificity of recognition for myclobutanil.
高文惠1, 2，刘 博1, 2，李兴峰1, 2，韩俊华1, 2，贾英民1, 2* . 制备腈菌唑分子印迹聚合物前功能单体选择研究 [J]. 光谱学与光谱分析, 2014, 34(03): 791-794.
GAO Wen-hui1,2, LIU Bo1,2, LI Xing-feng1,2, HAN Jun-hua1,2, JIA Ying-min1,2* . Study on the Choice of Functional Monomer before Preparation of Myclobutanil Molecularly Imprinted Polymer. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(03): 791-794.
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