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《Journal of Guangxi University(Natural Science Edition)》 2013-03
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Preparation and characterization of molecularly imprinted polymers of sucrose

NING Chuen-yuan1,JIANG Lin-bin1,YUAN Xia1,LIANG Bi-chao2,YE Shao-feng2,ZHANG Yong-jun1(1.School of Chemistry and Chemical Engineering,Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology,Guangxi University,Nanning 530004,China;2.Department of Laboratory and Equipment Management,Guangxi University,Nanning 530004,China)  
The molecularly imprinted polymers have been discovered to have good selectivity for absorption.It is beneficial to separation and purification of the imprinted molecule.The molecularly imprinted polymers of sucrose were prepared by using the sucrose as template molecule,methyl methacrylate as functional monomer and N,N’-methylene bisacrylamide as crosslinker.The effects of the different initiators,dosage of initiator,dosage ratio of sugar and methyl methacrylate,reaction temperature,reaction time and the dosage ratio of functional monomer and crosslinking agent on the adsorption capacity of molecularly imprinted polymers were investigated with single factor method.The structure of imprinted polymers was analyzed by IR,SEM.The experiments showed that the optimal reaction conditions were ammonium persulfate as initiator,its concentration 1.2 mg/mL,the reaction time in 18 h,the reaction temperature at 50 ℃,the dosage ratio of methyl methacrylate and sugar in 4∶ 1,and the dosage ratio of crosslinking agent and methyl methacrylate in 5∶ 1.The SEM results showed that the molecularly imprinted polymers surface appeared crisscross network and many specific identification cavities.The FT-IR results showed that the template molecules in polymer were well eluted down.
【Fund】: 广西自然科学基金资助项目(桂科自2012GXNSFAA053028);; 广西亚热带生物资源保护利用重点实验室基金项目(SB0804);; 广西大学科研基金项目(X081089)
【CateGory Index】: O631.3
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