Comparison of thermal‐ and photo‐polymerization of lauryl methacrylate monolithic columns for CEC

Bernabé-Zafón, Virginia; Cantó‐Mirapeix, Amparo; Simó‐Alfonso, Ernesto Francisco; Ramis‐Ramos, Guillermo; Herrero‐Martínez, José Manuel

doi:10.1002/elps.200800553

Cited by 17 publications

(1 citation statement)

References 32 publications

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“…Precipitation polymerization and emulsion polymerization are the most used polymerization methods to synthesize MIP NPs [ 7 , 15 , 16 ], while bulk polymerization has traditionally been used to synthesize MIPs as porous monoliths [ 14 , 39 ]. In both cases, the polymerization reaction can be initiated using thermal and UV energy in the presence of a radical initiator (e.g., methacrylate and acrylate polymers) [ 40 , 41 ] or thanks to a change of the pH value in polycondensation reactions (e.g., silica polymer) [ 42 , 43 ]. On the other hand, electropolymerization is widely used for the preparation of thin polymeric layers [ 44 , 45 ].…”

Section: Types Of Strategies To Synthesize Nanostructured Mipsmentioning

confidence: 99%

Molecularly Imprinted Polymer Micro- and Nano-Particles: A Review

2020

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In recent years, molecularly imprinted polymers (MIPs) have become an excellent solution to the selective and sensitive determination of target molecules in complex matrices where other similar and relative structural compounds could coexist. Although MIPs show the inherent properties of the polymers, including stability, robustness, and easy/cheap synthesis, some of their characteristics can be enhanced, or new functionalities can be obtained when nanoparticles are incorporated in their polymeric structure. The great variety of nanoparticles available significantly increase the possibility of finding the adequate design of nanostructured MIP for each analytical problem. Moreover, different structures (i.e., monolithic solids or MIPs micro/nanoparticles) can be produced depending on the used synthesis approach. This review aims to summarize and describe the most recent and innovative strategies since 2015, based on the combination of MIPs with nanoparticles. The role of the nanoparticles in the polymerization, as well as in the imprinting and adsorption efficiency, is also discussed through the review.

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Section: Types Of Strategies To Synthesize Nanostructured Mipsmentioning

confidence: 99%

Molecularly Imprinted Polymer Micro- and Nano-Particles: A Review

2020

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Study of elution behaviour with gradient voltage in CEC using methacrylate monolithic columns

et al. 2010

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A theoretical study on the retention behaviour and chromatographic performance of neutral solutes using a lauryl methacrylate-based monolithic column under voltage gradient mode in CEC was carried out. Through a flexible mathematical function based on a modified Gaussian model, the peak shape of compounds was firstly fitted under constant and gradient voltage. Using the peak shape parameters and retention time, the estimation of global chromatographic performance, efficiency and peak capacity under several voltage conditions was performed. The influence of voltage gradient on the separation efficiency is discussed and simple equations are presented to calculate retention and peak widths under voltage gradient conditions. A comparison in terms of chromatographic performance of a test mixture of neutral solutes under constant and gradient voltage modes was also carried out. The experiments carried out under gradient voltage showed better efficiencies (172,000 plates/m) and lower peak widths than those obtained under constant voltage (52,000 plates/m).

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A strong inorganic acid‐initiated methacrylate polymerization strategy for room temperature preparation of monolithic columns for capillary electrochromatography

Wang

Jiang

et al. 2010

Electrophoresis

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A facile strong inorganic acid-initiated methacrylate polymerization strategy was developed for fabricating monolithic columns at room temperature. The prepared monoliths were characterized by FTIR spectrometry, mercury intrusion porosimeter and SEM, while their performance was evaluated by CEC for the separation of various types of compounds including alkyl benzenes, polycyclic aromatic hydrocarbons, nonsteroidal anti-inflammatory drugs, anilines, and nitrophenol isomers. The column-to-column and batch-to-batch reproducibility for the prepared monoliths in terms of the RSD of EOF flow velocity, retention factor, and the minimum plate height of naphthalene ranged from 3.4 to 12.4%. The fabricated monoliths gave excellent performance for the separation of the test neutral compounds with the theoretical plates of 170 000-232 000 plates per meter for thiourea, and 77 400-112 300 plates per meter for naphthalene. The proposed strong inorganic acid-initiated methacrylate polymerization strategy is a promising alternative for fabricating organic polymer-based monoliths.

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Comparison of thermal‐ and photo‐polymerization of lauryl methacrylate monolithic columns for CEC

Cited by 17 publications

References 32 publications

Molecularly Imprinted Polymer Micro- and Nano-Particles: A Review

Molecularly Imprinted Polymer Micro- and Nano-Particles: A Review

Study of elution behaviour with gradient voltage in CEC using methacrylate monolithic columns

A strong inorganic acid‐initiated methacrylate polymerization strategy for room temperature preparation of monolithic columns for capillary electrochromatography

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