Preparation of Polyelectrolytes Chemisorbed to a Silica Surface
Document Type
Oral Presentation
Campus where you would like to present
SURC 202
Start Date
17-5-2012
End Date
17-5-2012
Abstract
In the interest of exploring polyelectrolyte/surfactant complex use to move and deposit hydrophobic molecular cargo to a surface, silica anchored polyelectrolyte complexes were synthesized. These silica complexes were generated by an initial amination of terminal silanol groups of silica nano-particles that were synthesized via the well know Stüber process. Subsequent reaction of anhydride groups of poly(styrene-co-maleic anhydride) with these amine groups via electrophilic substitution was carried out. Throughout synthesis addition of desired groups to the silica surface was monitored using attenuated total internal reflection Fourier transform infrared spectroscopy (ATR-FTIR). The ATR-FTIR spectra show that the polymer is successfully attached to the aminated silica surface and that the resulting surface bound polymer does have bands that correspond to carboxylate functionality and give the bound polymer a polyelectrolyte character.
Recommended Citation
Bryce, David, "Preparation of Polyelectrolytes Chemisorbed to a Silica Surface" (2012). Symposium Of University Research and Creative Expression (SOURCE). 69.
https://digitalcommons.cwu.edu/source/2012/oralpresentations/69
Additional Mentoring Department
Chemistry
Preparation of Polyelectrolytes Chemisorbed to a Silica Surface
SURC 202
In the interest of exploring polyelectrolyte/surfactant complex use to move and deposit hydrophobic molecular cargo to a surface, silica anchored polyelectrolyte complexes were synthesized. These silica complexes were generated by an initial amination of terminal silanol groups of silica nano-particles that were synthesized via the well know Stüber process. Subsequent reaction of anhydride groups of poly(styrene-co-maleic anhydride) with these amine groups via electrophilic substitution was carried out. Throughout synthesis addition of desired groups to the silica surface was monitored using attenuated total internal reflection Fourier transform infrared spectroscopy (ATR-FTIR). The ATR-FTIR spectra show that the polymer is successfully attached to the aminated silica surface and that the resulting surface bound polymer does have bands that correspond to carboxylate functionality and give the bound polymer a polyelectrolyte character.
Faculty Mentor(s)
Dion Rivera