摘要
制备腈菌唑分子印迹聚合物(MMIP),研究其特异识别能力。以腈菌唑为模板分子,α-甲基丙烯酸(MAA)为功能单体,采用本体聚合法合成分子印迹聚合物(MIP)。考察不同致孔剂对模板物质与功能单体相互作用力的影响。研究了采用不同比例模板分子与功能单体合成的聚合物对腈菌唑吸附量的影响,通过静态吸附试验研究其吸附性能,并做Scatchard分析。结果表明:当乙腈和四氢呋喃为致孔剂时,腈菌唑的最大吸收波长发生红移,分别红移4 nm和2 nm,吸收峰增强。通过Scatchard分析可知,腈菌唑与MAA形成了一类结合位点,其解离常数KD=1.36 mmol/L。四氢呋喃和乙腈适用于腈菌唑分子印迹聚合物的制备。合成的印迹聚合物对模板分子具有很强的亲和力和良好的识别能力,可以作为腈菌唑的分离材料。
To prepare a myclobutanil molecularly imprinted polymer（MMIP） and study its specific recognition ability, MMIP was prepared by the method of bulk polymerization under different ratios between template molecular and functional monomer, using myclobutanil as template molecule, methacrylate acid（MAA） as functional monomer. The influence of different pore-foaming agents on the interaction between template molecular and functional monomer was investigated, the effect of the prepared polymer using different ratios template molecular and functional monomer on the adsorption content of myclobutanil was also studied. Adsorption property of myclobutanil was examined by static adsorption test and analyzed by Scatchard analysis. The results indicated that the maximum absorption wavelength of myclobutanil could produce red shift and the red shifts were 4 nm and 2 nm, respectively, and the absorption intensity increased using acetonitrile and tetrahydrofuran as pore-foaming agent. Through the Scatchard analysis, it showed that myclobutanil template molecule and functional monomer MAA formed one types of binding sites, the dissociation constants of the binding sites was 1.36 mmol/L, respectively. Tetrahydrofuran and acetonitrile were more suitable for the preperation of MMIP. The molecularly imprinted polymer can be used as the separation media of myclobutanil with high affinity and good specific recognition ability.
出处
《中国食品学报》
EI
CAS
CSCD
北大核心
2014年第11期186-190,共5页
Journal of Chinese Institute Of Food Science and Technology
基金
河北省科技支撑计划项目(14227504D
14236602D-13)
