Poly(2-hydroxyethyl acrylate-co-ethyleneglycol dimethacrylate) monoliths synthesized by radiation polymerization in a mold

Beiler, Barbara; Vincze, Árpád; Švec, František; Sáfrány, Ágnes

doi:10.1016/j.polymer.2007.04.002

Cited by 34 publications

(27 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…From a practical point of view, this indicates that the higher the percentage of monomer in the polymerization mixture, the lower the permeability of the final monolithic material. For example, no measurable flow through was observed even at a high pressure for the column prepared from a 50 vol% DEGDMA solution [72,73]. In radiation-initiated polymerization without any initiator, the effect of temperature is different.…”

Section: C-radiation-initiated Polymerizationmentioning

confidence: 99%

Preparation of methacrylate monoliths

Влах

Tennikova²

2007

J of Separation Science

151

View full text Add to dashboard Cite

Rigid macroporous polymers developed in the early 1990s are widely used as efficient stationary phases for all types of chromatographic separations. The main advantages of so-called monolithic supports are their high hydraulic permeability and the dominance of the convection over the diffusion mechanism of mass-exchange under dynamic conditions that allow the separation to be carried out at extremely high flow rates and, consequently, during very short operation times. Among other types of macroporous polymers, the methacrylate-based monolithic materials represent the most popular and successfully explored class of sorbents. This review is an attempt to collect together the contributions of different groups working in the area of monolith preparation. Examples of different methcrylate monomers and crosslinkers, as well as porogenic solvents, including polymer ones, used in monolith preparation are discussed.

show abstract

Section: C-radiation-initiated Polymerizationmentioning

confidence: 99%

Preparation of methacrylate monoliths

Влах

Tennikova²

2007

J of Separation Science

151

View full text Add to dashboard Cite

show abstract

“…These phases are usually prepared by in situ free-radical polymerization of a mixture containing one or more functional monomers, including a crosslinker, a porogenic solvent and an initiator. Heat [3][4][5][6][7] and UV irradiation [5,[7][8][9] are the most common ways of initiating polymerization, while other techniques, such as microwaves [10], g-radiation [11,12], electron beam [13] and chemical agents [14][15][16][17] have been scarcely employed. Advantages of photo-initiation are speed and easy selection of polymerization regions by using masks, which is particularly important in relation to the manufacturing of microfluidic chips.…”

Section: Introductionmentioning

confidence: 99%

Photo‐polymerized lauryl methacrylate monolithic columns for CEC using lauroyl peroxide as initiator

et al. 2009

View full text Add to dashboard Cite

Lauryl methacrylate (LMA)-ester based monolithic columns photo-polymerized using lauroyl peroxide (LPO) as initiator were prepared, and their morphological and CEC properties were studied. The composition of the polymerization mixture (i.e. ratios of monomers/porogenic solvents, 1,4-butanediol/1-propanol and LMA/crosslinker) was optimized. The morphological and chromatographic properties of LMA columns were evaluated by means of SEM pictures and van Deemter plots of PAHs, respectively. The polymerization mixture selected as optimal provided a fast separation of a mixture of PAHs with excellent efficiencies (minimum plate heights of 8.9-11.1 microm). Satisfactory column-to-column (RSD<4.5%) and batch-to-batch reproducibilities (RSD<6.3%) were achieved. The LMA columns photo-polymerized with LPO were compared with those prepared with AIBN. Using PAHs, alkylbenzenes and basic compounds for testing, the columns obtained with LPO gave the best compromise between efficiency, resolution and analysis time.

show abstract

“…Polymerization reaction with these bulk monomers is commonly initiated by high temperature, mainly using AIBN [5-12, 14, 15, 18, 19] as initiator, or by UV irradiation, with this same initiator [12,16,20,21] or others like 2,2-dimethoxy-2-phenylacetophenone [17,[22][23][24][25][26]. Other less common approaches to initiate the polymerization are the use of g-radiation [27][28][29][30] or a chemical agent [31].…”

Section: Introductionmentioning

confidence: 99%

Lauroyl peroxide as thermal initiator of lauryl methacrylate monolithic columns for CEC

et al. 2008

View full text Add to dashboard Cite

The preparation of lauryl methacrylate (LMA)-based monolithic columns for CEC using lauroyl peroxide (LPO) as thermal initiator of polymerization has been investigated. The influence of initiator amount and composition of porogenic solvent on the physical and electrochromatographic properties of the resulting LMA-based monoliths was evaluated. A comparison with LMA-based columns thermally polymerized with AIBN was performed. At a given porogenic solvent composition, LMA stationary phases initiated with LPO showed higher permeabilities and better efficiency values than those prepared using AIBN as initiator. The optimum polymerization mixture found for LPO initiator provided a minimum plate height of 9.5 mum in a polycyclic aromatic hydrocarbon mixture. The produced monolithic beds also exhibited a good run-to-run repeatability and column-to-column and mixture-to-mixture reproducibility, with RSD values below 5.3% for the retention factors, areas and plate heights.

show abstract

Poly(2-hydroxyethyl acrylate-co-ethyleneglycol dimethacrylate) monoliths synthesized by radiation polymerization in a mold

Cited by 34 publications

References 26 publications

Preparation of methacrylate monoliths

Preparation of methacrylate monoliths

Photo‐polymerized lauryl methacrylate monolithic columns for CEC using lauroyl peroxide as initiator

Lauroyl peroxide as thermal initiator of lauryl methacrylate monolithic columns for CEC

Contact Info

Product

Resources

About