Dynamic Anion-Adaptive Poly(ionic liquid) Films via Surface-Initiated Ring-Opening Metathesis Polymerization
By Njoroge, Ian; Matson, Maxwell W.; Jennings, G. Kane
Published in The Journal of Physical Chemistry C
2017
Abstract
We report the surface-initiated ring-opening metathesis polymerization (SI-ROMP) of ionic liquid-tethered monomers to grow poly(ionic liquid) (PIL) films on gold and silicon substrates. The kinetics of film growth are rapid, with profilometric thicknesses approaching 600 nm within 15 min of polymerization in a 0.1 M monomer solution and substantial film growth observed at monomer concentrations as low as 0.02 M. The ionic liquid (IL) monomer consists of the cation 3-[(bicyclo[2.2.1]hept-5-en-2-yl)methyl]-1,2-dimethylimidazol-3-ium (N1-dMIm+) with the hexafluorophosphate (PF6