title: Self-Assembled Colloidal Particle Clusters from In Situ Pickering-Like Emulsion Polymerization via Single Electron Transfer Mechanism.
abstract: A simple route is reported to synthesize colloidal particle clusters (CPCs) from self-assembly of in situ poly(vinylidene fluoride)/poly(styrene-co-tert-butyl acrylate) [PVDF/P(St-co-tBA)] Janus particles through one-pot seeded emulsion single electron transfer radical polymerization. In the in situ Pickering-like emulsion polymerization, the tBA/St/PVDF feed ratio and polymerization temperature are important for the formation of well-defined CPCs. When the tBA/St/PVDF feed ratio is 0.75 g/2.5 g/0.5 g and the reaction temperature is 35 °C, relatively uniform raspberry-like CPCs are obtained. The hydrophobicity of the P(St-co-tBA) domains and the affinity of PVDF to the aqueous environment are considered to be the driving force for the self-assembly of the in situ formed PVDF/P(St-co-tBA) Janus particles. The resultant raspberry-like CPCs with PVDF particles protruding outward may be promising for superhydrophobic smart coatings.
authors.affiliation: Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin, 300130, P. R. China.
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Yuan
authors.affiliation: Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin, 300130, P. R. China.
authors.forename: Weiting
authors.initials: W
authors.lastname: Zhao
authors.affiliation: Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin, 300130, P. R. China.
authors.forename: Mingwang
authors.initials: M
authors.lastname: Pan
authors.affiliation: Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106-7202, USA.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhu
mesh_terms: D000179:Acrylates / Q000737:chemistry*; D003102:Colloids; D004583:Electrons; D004655:Emulsions; D057927:Hydrophobic and Hydrophilic Interactions; D058105:Polymerization; D011137:Polystyrenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D005465:Fluorocarbon Polymers
chemical_list: D000179:Acrylates; D003102:Colloids; D004655:Emulsions; D011137:Polystyrenes; D011145:Polyvinyls; C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers; C522411:tert-butyl acrylate
keywords: Janus particle; colloidal particle clusters; emulsion polymerization; fluoropolymers; single electron transfer radical polymerization