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17 Catalytic conversion of linear low density polyethylene into carbon nanomaterials under the combined catalysis of Ni2O3 and poly(vinyl chloride)
关键字：Adsorption, Carbon nanomaterial, Catalysis, Methylene blue, Polymer
A one-pot method was used to prepare magnetic Ni/carbon (Ni/C) nanomaterials by catalytic carbonization of linear low density polyethylene (LLDPE) under the combined catalysis of Ni2O3 and polyvinyl chloride (PVC) resin. The yield of Ni/C nanomaterials was determined by the pyrolysis temperature, the type and the content of PVC resin. The yield of magnetic Ni/C nanomaterials first increased and th...
http://www.polymer.cn/research/sy_info19550 |
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Reinforcement of shape-memory poly(ethylene-co-vinyl acetate) by carbon fibre to access robust recovery capability under resistant Condition`
关键字：Smart materials, Carbon fibresPolymer-matrix composites, Shape memory polymer
Poly (ethylene-co-vinyl acetate) (EVA), as one of commercial polymers, has been used early to fabricateshape-memory polymers (SMPs). However, its low recovery stress restricts the potential applications insome tough conditions due to its high ?exible feature. Herein, we developed a series of EVA-basedcomposites (cEVA/CF) with remarkably enhanced recovery stress both in free-state and resistant con...
http://www.polymer.cn/research/sy_info19530 |
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Dual Drug Backboned Shattering Polymeric Theranostic Nanomedicine for Synergistic Eradication of Patient-Derived Lung Cancer
关键字：Dual sensitivity, shattering polymer, precise nanomedicine, patient-derived tumor, computer tomography
Most of current nanoparticle-based therapeutics
worldwide failing in clinical trials can be mostly attributed to three major
challenges: i) lack of optimum drug
delivery platform with precise composition, ii)
lack of way of directly monitoring the fate of a specific drug rather than
using any other labelling molecules for a compromise and iii) lack of reliable cancer models with high fidelity ...
http://www.polymer.cn/research/sy_info19525 |
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A nitrogen-rich, azaindole-based microporous organic network: synergistic effect of local dipole–π and dipole–quadrupole interactions on carbon dioxide uptake
关键字：microporous organic polymer, dipole–π and dipole–quadrupole interactions
A new type of microporous organic polymer with azaindole units (N-PEINK) has been designed. The resulting N-PEINK exhibits good chemical and thermal stability with a decomposition temperature of 550 °C. Taking advantage of the synergistic effect of local dipole–π and dipole–quadrupole interactions between azaindole and carbon dioxide (CO2), the CO2 uptake capacity of the polymer reaches 20.8...
http://www.polymer.cn/research/sy_info19477 |
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Synthesis of High-Performance Polymers via Copper-Catalyzed Amination of Dibromoarenes with Primary Aromatic Ether Diamines
关键字：poly(imino ether ketone)s, heat-resistant polymer, copper-catalysis, foam.
In this paper, we introduce three high-performance polymers with similar structures, poly(imino ether ketone) (PIEK)s, which are synthesized by the ligand free copper-catalyzed C-N cross coupling reaction of aryl halides and primary aromatic diamines at moderate temperature. The influence of the solvents, base, temperature, and catalyst ligands on the polycondensation reaction is investigated. T...
http://www.polymer.cn/research/sy_info19473 |
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[RSC Adv.] Direct functionalization of cellulose nanocrystals with polymer brushes via UV-induced polymerization: access to novel heterogeneous visible-light photocatalysts
关键字：polymer brushes, cellulose nanocrystals, UV-induced photopolymerizations
Cellulose nanocrystals (CNCs) are an exciting class of bio-based materials attracting increasing interest for
a wide range of potential applications due to their nanoscale dimensions, biocompatibility, biodegradability
and large surface area. In this work, we report a universal and facile strategy for the preparation of polymer
brushes on CNCs via photopolymerization in the absence of any initiato...
http://www.polymer.cn/research/sy_info19424 |
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Equal Low-Order Finite Element Simulation of the Planar Contraction Flow for Branched Polymer Melts
关键字：Equal low-order finite element; Fractional step algorithm; Planar contraction; Rheological behavior; Viscoelastic flow; XPP mode
The rheological characteristics of branched polymer melts
is described by the modified XPP model, which is discretized by
inconsistent streamline-upwind method. A finite increment calculus
procedure is introduced to reformulate the mass equation and to
overcome oscillations of the pressure field. Moreover, the governing
equations are discretized and solved by the iterative fractional step
algorith...
http://www.polymer.cn/research/sy_info19401 |
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A Main-Chain de Vries Smectic Liquid Crystal Polymer Prepared by Hoveyda-Grubbs Catalyst-Initiated Acyclic Diene Metathesis Polymerization
关键字：ADMET; de Vries Smectic; fibers; liquid-crystalline polymers (LCP)
A main-chain liquid crystalline polymer has been obtained by applying a Hoveyda–Grubbs
2nd generation catalyst in acyclic diene metathesis polymerization (ADMET) of a monomer containing on one end a terminal dimethylvinylsilyl group and at the other end a terminal C-C double bond.
http://www.polymer.cn/research/sy_info19352 |
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Synthesis and characterization of novel fluorinated polyimides derived from bis[4-(4''- aminophenoxy)phenyl]-3,5-bis(trifluoromethyl)phenyl phosphine oxide
关键字：Phenylphosphine oxide, Fluorinated polyimide, Thermally stable polymer
A novel fluorinated aromatic diamine, bis[4-(40-aminophenoxy)phenyl]-3,5-bis(trifluoromethyl)-
phenyl phosphine oxide, was synthesized. A series of new fluorinated polyimides containing phosphine oxide was prepared from the novel diamine with various commercially available aromatic dianhydrides. All the fluorinated polyimides show high glass transition temperatures, excellent thermal stabilit...
http://www.polymer.cn/research/sy_info18195 |
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支化高分子溶液在剪切下的应力硬化
关键字：branch polymer, rheology, non-Gaussian stretching, strain hardening
We show for the first time that entangled polymeric liquids containing long-chain branching can exhibit strain hardening upon startup shear. As the significant long-chain branching impedes chain disentangle- ment, Gaussian coils between ent...
http://www.polymer.cn/research/sy_info17876 |
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