Synthesis and Characterization of Novel Poly(Vinyl Ester Resin-co-Ethylene Dimethacrylate) Monolithic Network Columns.

Haiyan Liu; Shenghui Li; Ligai Bai; Gengliang Yang

In this report we introduce a new monolithic column for HPLC. The monolithic column was prepared using vinyl ester resin-co-ethylene dimethacrylate as the monomer. Using the free radical polymerization method a polymer network was formed, which was different from the traditional globular particles. The main factors affecting the porous structure of vinyl ester (VE) resin-based monolithic columns were investigated. By varying the porogen solvent, its content and the amount of initiator, different porous structures could be obtained. In order to evaluate the mechanical stability of the column material, the pressure drop across the column was measured at different flow-rates. Finally, using phenol, resorcinol and catechol as the test compounds, the normal-phase character of the poly(vinyl ester resin-co-ethylene dimethacrylate) monolith was evident.

ESTERS; MONOMERS; POLYMERIZATION; PARTICLES; SOLVENTS

Designed Monomers & Polymers, 2010, Vol 13, Issue 5, p399

1385-772X

Academic Journal

10.1163/138577210X521288