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Mechanistic insight into initiation and chain transfer reaction of CO2/cyclohexene oxide copolymerization catalyzed by zinc-cobalt double metal cyanide complex catalysts
ABSTRACT: Although zinc-cobalt (III) double metal cyanide complex (Zn-Co (III)DMCC) catalyst is a highly active and selective catalyst for carbon dioxide(CO2)/cyclohexene oxide (CHO) copolymerization, the structure of the resultant copolymer is poorly understood and the catalytic mechanism is still unclear. Combining the results of kinetic study and electrospray ionization-mass spectrometry (ESI...
http://www.polymer.cnt//ss/xhzhang/publicationsshow_5696.html |
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[J. Am. Chem. Soc.] Rare Earth Metal-Mediated Group-Transfer Polymerization: From Defined Polymer Microstructures to High-Precision Nano-Scaled Objects
Poly(2-isopropenyl-2-oxazoline) (PIPOx) and poly(2-vinylpyridine) (P2VP) have been efficiently synthesized using bis(cyclopentadienyl)methylytterbium (Cp2YbMe) as catalyst. The polymerizations of 2-isopropenyl-2-oxazoline (IPOx) and 2-vinylpyridine (2VP) follow a living group-transfer polymerization (GTP) mechanism, allowing a precise molecular-weight control of both polymers with very narrow mo...
http://www.polymer.cnt//ss/zhang_ning/publicationsshow_4850.html |
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Journal of the American Chemical Society Polyelectrolyte-functionalized Carbon Nanotubes as Efficient Metal-free Electrocatalysts for Oxygen Reduction Journal of the American Chemical Society, 2011, 133, 5182-5185
Journal of the American Chemical Society, 2011, 133, 5182-5185
http://www.polymer.cnt//ss/shuangyinwang/publicationsshow_4198.html |
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Poly(phenylene sulfide)/Low Melting Point Metal Composites. I. Transient Viscoelastic Properties and Crystallization Kinetics. Journal of Polymer Science Part B: Polymer Physics, 2008, 46, 677-690.
Journal of Polymer Science Part B: Polymer Physics, 2008, 46, 677-690.
ABSTRACT:
Poly(phenylene sulfide)/low melting point metal composites (PPSMs) with various loading levels were prepared by melt compounding. The nonisothermal crystallization behavior and transient viscoelastic properties were characterized respectively by the DSC, POM, DMA and parallel plate rheometer. The results reveal tha...
http://www.polymer.cnt//ss/wudefeng/publicationsshow_1438.html |
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Construction of Response Patterns for Metal Cations by Using a Fluorescent Conjugated Polymer Sensor Array from Parallel Combinatorial Synthesis
关键字：fluorescence, conjugated polymer, response pattern, sensor array, combinatorial synthesis
Pattern-based strategy is an emerging field of interest for effective sensing applications. Seven different conjugated polymers from combinatorial synthesis were combined into a sensor array, and seven metal cations were selected as representative analytes. The response patterns for each cation were constructed by collecting the individual fluorescence responses from seven...
http://www.polymer.cn/research/sy_info18198 |
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Mg2+/Ca2+ binding to DNA bases: a quantum chemical method and ABEEMrp/MM fluctuating charge model study
关键字：DNA base,Metal cation,Quantum chemical method,ABEEMrp/MM,Polarizable force field
The interactions of Mg2+ and Ca2+ binding to adenine, cytosine, guanine, and thymine at various binding sites were studied by a high-level quantum chemical method and ABEEMrp/MM fluctuating charge model. The geometries and binding energies of M2+-bases complexes were determined at CCSD(T)/6-311++G(2d,2p)//MP2/6-311++G(2d,2p) level of theory, with the basis set&nb...
http://www.polymer.cn/research/sy_info17684 |
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Efficient Metal-Free Organic Sensitizers Containing TetraphenylethyleneMoieties in the Donor Part for Dye-Sensitized Solar Cells
关键字：Donor–acceptor systems, Dyes/pigments, Sensitizers, Solar cells, Energy conversion
Two new propeller-shaped D-π-A organic sensitizers that contain two tetraphenylethylene (TPE) moieties in the donor part of the triphenylamine group have been designed and
characterized. These dyes are composed of the same donor and acceptor units with different aromatic units introduced through linkers between the donor and acceptor units. The dye-sensitized solar cells (DSCs) based on LI-31 wit...
http://www.polymer.cn/research/sy_info17360 |
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Creating Filler/Matrix Interfacial Bonding by Metal Ion Coordination : Graphene Oxide/Polymer Nanocomposites with Significantly Enhanced Mechanical Properties
关键字：Graphene oxide, Polymers, Nanocomposites, Coordination, Mechanical properties
Graphene, the most recently found allotrope of the carbon family, has provoked research interest worldwide due to its outstanding electronic, mechanical and thermal propertiescl].Nowadays, a functionalized graphene derivative, graphene o...
http://www.polymer.cn/research/sy_info15175 |
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Creating Filler/Matrix Interfacial Bonding by Metal Ion Coordination : Graphene Oxide/Polymer Nanocomposites with Significantly Enhanced Mechanical Properties
关键字：graphene oxide, polymers, nanocomposites, coordination, mechanical properties
Graphene, the most recently found allotrope of the carbon family, has provoked research interest worldwide due to its outstanding electronic, mechanical and thermal propertiescl].Nowadays, a functionalized graphene derivative, graphene o...
http://www.polymer.cn/research/dis_info17240 |
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Investigation on ionic polymer actuators based on irradiation-crosslinked sulfonated poly(styrene-ran-ethylene)
关键字：ionomer, poly (styrene-ran-ethylene), ionic polymer metal composites
The ion-exchange membrane, Nafion, remains as the benchmark for a majority of research and development in IPMC technology. In this research, we employed a novel ionomer named by sulfonated poly(styrene-ran-ethylene) (SPSE) that is cros...
http://www.polymer.cn/research/dis_info13957 |
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