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Nanofibers with Very Fine Core-Shell Morphology from Anisotropic Micelle of Amphiphilic Crystalline-Coil Block Copolymer
A novel and facile strategy, combining anisotropic
micellization of amphiphilic crystalline-coil copolymer in water and
re-assembly during single spinneret electrospinning, was developed for preparing nanofibers with very fine core-shell structure. Polyvinyl alcohol (PVA) and polyethylene glycol-block-poly(p-dioxanone) (PEG-b-PPDO)
were used as the shell and the crystallizable core layer,
respecti...
http://www.polymer.cnt//ss/chensichong/publicationsshow_7073.html |
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[JMCA] Electric Field Induced Structural Color Changes of SiO2@TiO2 Core-Shell Colloidal Suspensions
A new core-shell nano building block of SiO2@TiO2 using high refractive index materials of TiO2 to coat SiO2 colloidal NPs by one step approach was prepared. Through the self-assembly of SiO2@TiO2 core-shell NPs through applied electric field, a suspension of photonic crystals with close packed are formed in propylene carbonate. The reflectance spectrum of the SiO2@TiO2 suspension was investigated...
http://www.polymer.cnt//ss/chentaogroup/publicationsshow_6812.html |
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Narrow-dispersed Crosslinked Core-shell Polymer Microspheres Prepared by Surface-initiated Atom Transfer Radical Polymerization
Grafting of polystyrene with narrowly dispersed polymer microspheres through surface-initiated atom transfer radical polymerization (ATRP) was investigated. Polydivinylbenzene (PDVB) microspheres were prepared by dispersion polymerization with poly(N-vinyl pyrrolidone) (PVP) as stabilizer. The surfaces of PDVB microspheres were chloromethylated by chloromethyl methyl ether in the presence of zinc ...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6586.html |
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Narrow or Mono-Disperse Crosslinked and Functional Core-shell Polymer Particles by Two-stage Precipitation Polymerization
Narrow-disperse and monodisperse crosslinked core–shell polymer particles containing different functional groups, such as esters, hydroxyls, chloromethyls, carboxylic acids, amides, cyanos, and glycidyls, in the shell layers in the micrometer size range were prepared by a two-stage precipitation polymerization in the absence of any stabilizer. Commercial divinylbenzene (DVB), containing 80% DVB, ...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6578.html |
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Synthesis of Core-shell Microspheres with Active Hydroxyl Group by Two-stage Precipitation Polymerization
Monodisperse micrometer microspheres having active hydroxyl groups with a dense core and a lightly crosslinked functional shell were prepared by two-stage precipitation polymerization in the absence of any stabilizer. Commercial divinylbenzene (DVB), containing 80 % of DVB was polymerized by precipitation in acetonitrile without any stabilizer as the first stage polymerization and used as the core...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6561.html |
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Synthesis of Polymer/ZrO2 Core-shell Microspheres and the Corresponding Hollow Porous Zirconia Microspheres
Narrow-disperse poly(N,N0-methylenebisacryamide-co-methacrylic acid)/zirconium hydroxide (P(MBA-co-MAA)/Zr(OH)4) coreeshell composite microspheres were synthesized by the controlled sole-gel hydrolysis of inorganic zirconium n-butoxide (Zr(OBu)4) precursor in ethanol and acetonitrile mixed solvent with P(MBA-co-MAA) microspheres as templates. The thickness of the outer inorganic Zr(OH)4 shell-laye...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6560.html |
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Synthesis of Tri-layer Magnetic Polymer Microspheres with Magnetic core and Functional Polymer Shell
Tri-layer magnetite/silica/poly(divinylbenzene)(Fe3O4/SiO2/PDVB) core-shell hybrid microspheres
were prepared by distillation precipitation polymerization of divinylbenzene (DVB) in the presence of magnetite/3-(methacryloxyl)propyl trimethoxysilane (MPS) modified silica core-shell particles as seeds. The polymerization of DVB was performed in neat
acetonitrile with 2,20-azobisisobutyronitrile (A...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6559.html |
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Polymer Shell as A Protective Layer for Sandwiched Gold Nanoparticles and Their Highly Stable Catalytic Property
Poly(ethyleneglycol methacrylate) (PEGDMA) shell was used as a protective layer for the sandwiched gold nanoparticles, which were prepared through the in situ reduction in the HAuCl4 precursor in the presence of (aminopropyl)trimethoxysilane (APS) modified silica/PEGDMA core–shell microspheres. In this process, the silica/PEGDMA core–shell microspheres were afforded by the distillation-precipita...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6552.html |
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Synthesis of Silica/Poly(N,N?-Methylenebisacrylamide) Core-shell Composite Materials by Distillation-precipitation Polymerization
Monodisperse silica/poly(N,N0-methylenebisacrylamide) coreeshell composite materials with silica as core and poly(N,N0-methylenebisacrylamide) (PMBAAm) as shell were prepared by a two-stage reaction, in which the silica core with diameter of 500 nm was synthesized in the first stage according to Sto¨ber method. The PMBAAm shell was then encapsulated over the silica core by distillationeprecipitat...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6528.html |
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Concentric Hollow Nanospheres of Mesoporous Silica Shell-Titania Core from Combined Inorganic and Polymer Synthesis
Nearly monodispersed concentric hollow nanospheres with a mesoporous silica shell and anatase titania inner core were synthesized by the combination of sol-gel reaction and distillation-precipitation polymerization. The welldefined mesoporous concentric hollow nanospheres, comprising two nanostructured functional inorganics, can be used
for confined catalytic reactions. The direct synthesis proced...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6520.html |
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