title: MMTCA recognition by molecular imprinting in interpenetrating polymer network hydrogels based on poly(acrylic acid) and poly(vinyl alcohol).
abstract: A novel IPN hydrogel designed to recognize MMTCA is prepared by applying the molecular-imprinting method. The IPN is characterized by FT-IR, DSC, and SEM. Langmuir analysis shows that an equal class of adsorption is formed in the hydrogel. The adsorption equilibrium constant and the maximum adsorption capacity are evaluated, and the effect of the pH on MMTCA adsorption is discussed. The selectivity of the imprinted polymer for MMTCA is studied in aqueous solutions of MMTCA/aspirin/riboflavin. The results suggest that the MMTCA-imprinted polymer shows superior selectivity for MMTCA as compared to riboflavin and aspirin. The reproducibility of the imprinted polymer to MMTCA is also studied.
authors.affiliation: Department of Chemistry and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.forename: Ming-Zhu
authors.initials: MZ
authors.lastname: Liu
authors.forename: Rui
authors.initials: R
authors.lastname: Liang
authors.forename: Sheng-Long
authors.initials: SL
authors.lastname: Ding
authors.forename: Zhen-Bin
authors.initials: ZB
authors.lastname: Chen
authors.forename: Shi-Lan
authors.initials: SL
authors.lastname: Chen
authors.forename: Shu-Ping
authors.initials: SP
authors.lastname: Jin
mesh_terms: D000327:Adsorption; D020100:Hydrogels / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D054802:Molecular Imprinting / Q000379:methods* / Q000592:standards; D011109:Polymethacrylic Acids; D011142:Polyvinyl Alcohol; D013859:Thiocarbamates / Q000032:analysis*
chemical_list: D020100:Hydrogels; C511721:N-(4-methyl)phenyl-O-(4-methoxy)phenylthionocarbamate; D011109:Polymethacrylic Acids; D013859:Thiocarbamates; D011142:Polyvinyl Alcohol