title: Synthesis of Polystyrene and Poly(4-vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and CuI-Catalyzed Azide-Alkyne Click Chemistry.
abstract: Binary polystyrene and poly(4-vinylpyridine) mixed grafted silica nanoparticles (PSt/P4VP-g-SNPs) are fabricated using CuI-catalyzed azide-alkyne Huisgen cycloaddition (CuAAC) via grafting-to method. Azide-terminated PSt and P4VP are synthesized via post- and pre-atom transfer radical polymerization modification, respectively. Then, the polymers are simultaneously anchored onto alkyne-modified SNPs by CuAAC yielding mixed brushes as shown by Raman spectroscopy, dynamic light scattering, and thermogravimetric analysis. To the best of our knowledge, this is the first report of simultaneously grafting two distinct polymer chains to synthesize mixed grafted silica nanoparticles using CuAAC technique via grafting-to method.
authors.affiliation: Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476, Potsdam-Golm, Germany.|Lehrstuhl für Makromolekulare Materialien und Oberflächen, RWTH Aachen University, Forckenbeckstr. 50, 52056, Aachen, Germany.|DWI-Leibniz Institut für Interaktive Materialien e.V, Forckenbeckstr. 50, 52056, Aachen, Germany.
authors.forename: Lei
authors.initials: L
authors.lastname: Wu
authors.affiliation: Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476, Potsdam-Golm, Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Glebe
authors.affiliation: Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476, Potsdam-Golm, Germany.|Lehrstuhl für Polymermaterialien und Polymertechnologie, Universität Potsdam, 14476, Potsdam, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Böker
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D001386:Azides / Q000737:chemistry*; D002384:Catalysis; D057930:Click Chemistry; D003300:Copper / Q000737:chemistry*; D061565:Cycloaddition Reaction; D053758:Nanoparticles / Q000737:chemistry*; D058105:Polymerization; D011137:Polystyrenes / Q000138:chemical synthesis* / Q000737:chemistry; D011145:Polyvinyls / Q000138:chemical synthesis* / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D000480:Alkynes; D001386:Azides; D011137:Polystyrenes; D011145:Polyvinyls; C019535:poly(4-vinylpyridine); D012822:Silicon Dioxide; D003300:Copper
keywords: Huisgen cycloaddition; binary polymer brushes; grafting-to method; post-ATRP modification; pre-ATRP modification