title: Polythioether Particles Armored with Modifiable Graphene Oxide Nanosheets.
abstract: Facile and scalable fabrication methods are attractive to prepare materials for diverse applications. Herein, a method is presented to prepare cross-linked polymeric nanoparticles with graphene oxide (GO) nanosheets covalently attached to the surface. Alkene-modified GO serves as a surfactant in a miniemulsion polymerization, and the alkene functionalities of GO exposed to the oil-phase are incorporated into the polymer particle through thiol-ene reactions, leaving the unreacted alkene functional groups of the other face of GO available for further functionalization. The surface of GO-armored polymer particles is then modified with a small molecule fluorophore or carboxylic acid functional groups that bind to Fe2 O3 and TiO2 nanoparticles. This methodology provides a facile route to preparing complex hybrid composite materials.
authors.affiliation: Department of Chemistry, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA.
authors.forename: Bradley J
authors.initials: BJ
authors.lastname: Rodier
authors.affiliation: Department of Chemistry, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA.
authors.forename: Eric P
authors.initials: EP
authors.lastname: Mosher
authors.affiliation: Department of Chemistry, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA.
authors.forename: Spencer T
authors.initials: ST
authors.lastname: Burton
authors.affiliation: Department of Chemistry, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA.
authors.forename: Rachael
authors.initials: R
authors.lastname: Matthews
authors.affiliation: Department of Chemistry, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH, 44106, USA.
authors.forename: Emily
authors.initials: E
authors.lastname: Pentzer
mesh_terms: D005290:Ferric Compounds / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D058185:Magnetite Nanoparticles; D011108:Polymers; C009495:titanium dioxide; C000499:ferric oxide; D006108:Graphite; D014025:Titanium
keywords: armored particles; graphene oxide; miniemulsion polymerization; photopolymerization; thiol-ene chemistry