One-pot synthesis of N-methylimidazolium-based porous polymer monolith for capillary electrochromatography via free radical copolymerization and quaterisation.
One-pot synthesis of porous polymer monolith decorated with N-methylimidazolium in a capillary was described. The polymer matrix was synthesized by in situ copolymerization and quaterization of 3-chloro-2-hydroxylpropyl methacrylate (CHPMA), ethylene dimethacrylate (EDMA), and N-methylimidazole (N-MIz). The influencing factors including amount of cross-linkers, composition of porogenic solvents, and polymerization temperature on the formation of the monolithic column were investigated. The monolithic column exhibited high column efficiency for thiourea, up to 135 000 plates per meter, and phenylmethanol, up to 102 000 plates per meter. Different types of compounds including alkylbenzenes, phenols, and inorganic anions were successfully baseline separated by capillary electrochromatography (CEC). The separation of theses analytes on the column indicated typical reversed-phase and anion-exchange chromatographic retention mechanism.
State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, Changsha, P. R. China.
Yi
Y
Li
Yingzhuang
Y
Chen
Keyi
K
Wang
Lihua
L
Nie
Shouzhuo
S
Yao
D000111:Acetylcysteine / Q000031:analogs & derivatives / Q000737:chemistry; D001555:Benzene Derivatives / Q000302:isolation & purification; D053801:Capillary Electrochromatography / Q000295:instrumentation*; D007093:Imidazoles / Q000737:chemistry*; D008689:Methacrylates / Q000737:chemistry; D010636:Phenols / Q000302:isolation & purification; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D016062:Porosity; D015203:Reproducibility of Results
D001555:Benzene Derivatives; D007093:Imidazoles; D008689:Methacrylates; D010636:Phenols; D011108:Polymers; C004919:ethylene dimethacrylate; C104663:3-chloro-2-hydroxypropylmercapturic acid; C018100:1-methylimidazole; D000111:Acetylcysteine