A versatile method for grafting polymers on nanoparticles.
We report a simple and versatile method for grafting polymers on nanoparticles. A procedure was developed for the synthesis and subsequent functionalization of silica nanoparticles with a perfluorophenylazide. Polymers were then grafted by the photochemically induced insertion reactions of the perfluorophenylnitrene. Polystyrene, poly(4-vinylpyridine), and poly(2-ethyl-2-oxazoline) were successfully grafted on silica nanoparticles. Grafting density was studied with regard to polymer concentration and molecular weight.
Gann
John P
JP
Department of Chemistry, Portland State University, P.O. Box 751, Portland, Oregon 97207-0751, USA.
Yan
Mingdi
M
D001386:Azides / Q000737:chemistry; D002627:Chemistry, Physical / Q000379:methods; D004867:Equipment Design; D005464:Fluorobenzenes / Q000737:chemistry; D008970:Molecular Weight; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D010777:Photochemistry; D011108:Polymers / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature
D001386:Azides; D005464:Fluorobenzenes; D011108:Polymers; D011137:Polystyrenes; D012822:Silicon Dioxide