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Chen, X.M. et al.

Influence of vinyl monomers and temperature on immobilization of cellulose 3,5-dimethylphenylcarbamate onto silica gel as chiral stationary phases for high-performance liquid chromatography.

Cellulose 3,5-dimethylphenylcarbamates bearing a low content of a vinyl group at the 6-position on the glucose units were synthesized by a previously developed regioselective method and chemically immobilized onto a vinylized silica gel as chiral stationary phases (CSPs) for high-performance liquid chromatography (HPLC). The immobilization of the derivatives was performed through a radical polymerization reaction with AIBN as the initiator in the presence of toluene. The effects of vinyl monomers, such as isoprene, 2,3-dimethyl-1,3-butadiene (DMBD), ethylene glycol dimethacrylate (EDMA) and 1,5-hexadiene, on the immobilization and enantioselectivities of the derivatives were investigated. The effect of the temperature used for the radical polymerization reaction on the immobilization was also examined. In addition, the direct comparison of the chiral recognition abilities of the laboratory-made and commercially available columns was discussed.[1]

References

Influence of vinyl monomers and temperature on immobilization of cellulose 3,5-dimethylphenylcarbamate onto silica gel as chiral stationary phases for high-performance liquid chromatography. Chen, X.M., Yamamoto, C., Okamoto, Y. Journal of chromatography. A. (2006) [Pubmed]

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