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Hysteretic Adsorption and Desorption of Hydrogen by Nanoporous Metal-Organic Frameworks
Adsorption and desorption of hydrogen from nanoporous materials, such as activated carbon, is usually fully reversible. We have prepared nanoporous metal-organic framework materials with flexible linkers in which the pore openings, as characterized in the static structures, appear to be too small to allow H2 to pass. We observe hysteresis in their adsorption and desorption kinetics above the super...
http://www.polymer.cnt//ss/zhaoxuebo/publicationsshow_9805.html |
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26. Photoinduced Metal-Free Atom Transfer Radical Polymerization of Biomass-Based Monomers
Well-defined polymers derived from biomass feedstock (e.g., soybean oil, rosin acid, and furfural) were successfully prepared by metal-free atom transfer radical polymerization (ATRP). In the presence of photoredox catalysts and UV irradiation, three biomass-based methacrylate monomers were efficiently polymerized with good control over molecular weight and dispersi...
http://www.polymer.cnt//ss/wangzhongkai/publicationsshow_9721.html |
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(CP) Dithiocarbamate-modified starch derivatives with high heavy metal adsorption performance
In this work, three types of dithiocarbamate (DTC)-modified starch derivatives including DTC starch (DTCS), DTC enzymolysis starch (DTCES) and DTC mesoporous starch (DTCMS) were developed, which showed the significant heavy metal adsorption performance. The adsorption ability of these three DTC modified starch derivatives followed the sequences: DTCMS > DTCES > DTCS. I...
http://www.polymer.cnt//ss/guhongbo/publicationsshow_9660.html |
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[Polym. Chem.] Polymer Brushes on Metal–Organic Frameworks by UV-Induced Photopolymerization
Metal–organic frameworks (MOFs) are extremely promising candidates for application in diverse fields. However, a limitation to the widespread use of MOFs is the absence of a facile and efficient chemical modification method which can greatly improve their poor processability and stability without altering the inherent outstanding chemical and physical properties. Herein, we report a universal pos...
http://www.polymer.cnt//ss/zhang_ning/publicationsshow_9568.html |
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Heavy Metal Ions Removal by Nano-Sized Spherical Polymer Brushes
Nano-sized spherical polymer brushes (SPBs) consisting of both a polystyrene (PS) core and a brush shell of poly (acrylic acid ) (PAA), poly(N-acrylcysteamine) (PSH), or poly(N-acrylcysteamine-co-acrylic acid) (P(SH-co-AA)), were prepared by photo-emulsion polymerization. The core-shell structure was observed by dynamic light scattering and transmission electron microscopy. Due to the strengthen...
http://www.polymer.cnt//ss/kaiminchen/publicationsshow_7651.html |
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Directly Probing molecular ordering at the buried polymer/metal interface
We developed a methodology to directly probe molecular ordering at the buried polymer/metal interface. Using sum frequency generation (SFG) vibrational pectroscopy, we observed ordering of ester methyl groups at the buried poly(methyl acrylate) (PMA)/silver (Ag) interface. In order to directly probe the PMA/Ag interface, we collected SFG signal from a thin PMA film sandwiched between a...
http://www.polymer.cnt//ss/cenglxl/publicationsshow_7502.html |
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Molecular Ordering of Phenyl Groups at the Buried Polystyrene/Metal Interface
Understanding molecular structures of buried polymer/metal interfaces is important for the design and development of polymer adhesives used in advanced microelectronic devices and polymer anti-corrosion coatings for metals. The buried interfacial molecular structure between polystyrene (PS) and silver (Ag) was investigated using infrared-visible sum frequency generation (SFG) vibrational sp...
http://www.polymer.cnt//ss/cenglxl/publicationsshow_7467.html |
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196. Nitrogen-Doped Graphene Nanoribbons as Efficient Metal-Free Electrocatalysts for Oxygen Reduction.
Nitrogen-doped graphene nanoribbon (NGNR) nanomaterials with different nitrogen contents have been facilely prepared via high temperature pyrolysis of graphene nanoribbons (GNR)/polyaniline (PANI) composites. Here, the GNRs with excellent surface integration were prepared by longitudinally unzipping the multiwalled carbon nanotubes. With a high length-to-width ratio, the GNR sheets are prone to fo...
http://www.polymer.cnt//ss/liutianxi/publicationsshow_6875.html |
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Influence of Metal Ions on Hydrogenation of o-Chloronitrobenzene over platinum colloidal cluster
Hydrogenation of o-chloronitrobenzene has been studied in methanol at 303 K and atmospheric pressure over polyvinylpyrrolidone-stabilizedp latinum colloidal clusters. The catalytic properties of platinum clusters for the hydrogenation of o-chloronitrobenzene to o-chloroaniline were remarkably affected by the metallic cations added. Among these cations, the most favorable influence on activity an...
http://www.polymer.cnt//ss/yangxinlin/publicationsshow_6599.html |
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Modification of Ramie Fabric with Metal Ions Doped Intumescent Flame Retardant Coating
Transition metal ions doped flame retardant coatings were constructed on the surface of ramie fabrics by layer by layer (LbL) assembly technique to investigate the possible cooperative action that could improve the flame retardant efficiency. It is found that these functional coatings consisting of poly(vinylphosphonic acid) (anionic layer) and branched polyethylenimine/cupric or zinc ions (cation...
http://www.polymer.cnt//ss/zpfang/publicationsshow_4867.html |
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