title: Interface-directed self-assembly of gold nanoparticles and fabrication of hybrid hollow capsules by interfacial cross-linking polymerization.
abstract: Amphiphilic gold nanoparticles (AuNPs) were produced at liquid-liquid interface via ligand exchange between hydrophilic AuNPs and disulfide-containing polymer chains. By using oil droplets as templates, hybrid hollow capsules with AuNPs on the surfaces were obtained after interfacial cross-linking polymerization. The volume ratio of toluene to water exerts an important effect on the size of capsules. The average size of the capsules increases with the volume ratio. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM) were used to characterize the hollow structures. In this research, not only one-component but also multicomponent hollow capsules were prepared by copolymerization of acrylamide and hybrid AuNPs at liquid-liquid interface. Because of the improvement in hydrophilicity of the hollow capsules, the average size of multicomponent capsules is bigger than one-component ones in aqueous solution.
authors.affiliation: Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Tian
authors.forename: Liang
authors.initials: L
authors.lastname: Yuan
authors.forename: Mingming
authors.initials: M
authors.lastname: Zhang
authors.forename: Fan
authors.initials: F
authors.lastname: Zheng
authors.forename: Qingqing
authors.initials: Q
authors.lastname: Xiong
authors.forename: Hanying
authors.initials: H
authors.lastname: Zhao
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D002214:Capsules; D006046:Gold / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D053768:Metal Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D058105:Polymerization; D012997:Solvents / Q000737:chemistry; D013499:Surface Properties; D000099166:Polyacrylamides
chemical_list: D000180:Acrylic Resins; D002214:Capsules; D006046:Gold; D012997:Solvents; D000099166:Polyacrylamides