Jump to main content
Jump to site search

Issue 8, 2008
Previous Article Next Article

Thin thermo-responsive polymer films onto the pore system of chromatographic beads via reversible addition–fragmentation chain transfer polymerization

Author affiliations

Abstract

Mesoporous silica beads modified with an azo initiator were used for grafting of a thermo-responsive polymer (poly-N-isopropylacrylamide, PNIPAAM) through reversible addition–fragmentation chain transfer (RAFT) mediated polymerization. The RAFT mediation allowed an efficient control of the grafting process and led to suppression of the solution propagation preventing any visible gel formation. The resulting composites were characterized by Fourier transform infrared spectroscopy, nitrogen adsorption analysis, elemental analysis, transmission and scanning electron microscopy and as thermo-responsive stationary phases in chromatography. The resulting material proved to be efficient for the separation of a mixture of five hydrophobic steroids and the retention time and efficiency of separation improved with increasing the column temperature above the lowest critical solution temperature of PNIPAAM.

Graphical abstract: Thin thermo-responsive polymer films onto the pore system of chromatographic beads via reversible addition–fragmentation chain transfer polymerization

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 Jan 2008, accepted on 29 Feb 2008 and first published on 15 Apr 2008


Article type: Paper
DOI: 10.1039/B800851E
Citation: New J. Chem., 2008,32, 1409-1414
  •   Request permissions

    Thin thermo-responsive polymer films onto the pore system of chromatographic beads via reversible addition–fragmentation chain transfer polymerization

    F. Roohi and M. Magdalena Titirici, New J. Chem., 2008, 32, 1409
    DOI: 10.1039/B800851E

Search articles by author

Spotlight

Advertisements