Publication details

Polymerisation and Surface Modification of Methacrylate Monoliths in Polyimide Channels and Polyimide Coated Capillaries using 660 nm Light Emitting Diodes

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WALSH Zarah LEVKIN Paul A. ABELE Silvija SCARMAGNANI Silvia HEGER Dominik KLÁN Petr DIAMOND Dermot PAULL Brett SVEC Frantisek MACKA Miroslav

Year of publication 2011
Type Article in Periodical
Magazine / Source Journal of Chromatography A
MU Faculty or unit

Faculty of Science

Field Organic chemistry
Keywords Monolith Photo-initiated polymerisation Visible light Red LED Polyimide Micro-fluidic chips Grafting
Description An investigation into the preparation of monolithic separation media utilising a cyanine dye sensitiser/triphenylbutylborate/N-methoxy-4-phenylpyridinium tetrafluoroborate initiating system activated by 660nm light emitting diodes is reported. The work demonstrates multiple uses of redlight initiated polymerisation in the preparation of monolithic stationary phases within polyimide and polyimide coated channels and the modification of monolithic materials with molecules which absorb strongly in the UV region. This initiator complex was used to synthesise poly(butyl methacrylateco- ethylene dimethacrylate) and poly(methyl methacrylate-co-ethylene dimethacrylate) monolithic stationary phases in polyimide coated fused silica capillaries of varying internal diameters, as well as within polyimide micro-fluidic chips.
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