Materials Literature
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Although highly packed polymer nanocomposites (PNCs) are important for a wide array of applications, preparing them remains difficult because of the poor dispersion of NPs at high loading fractions. One method to successfully prepare PNCs with high loadings is through capillary rise infiltration, as previously shown b…
This paper describes a synthetic approach for photocrosslinkable polyfluorene (pc-PFO) semiconducting polymer dots, and demonstrates their superior ability to crosslink and form 3-D intermolecular polymer networks. The crosslinked pc-PFO Pdots are equipped with excellent encapsulating ability of functional small molec…
The hierarchical porous structures of vinyl polymers, such as polystyrene (PSt) and poly(methyl methacrylate) (PMMA), were derived from morphologies of a biomineral through replication. The resultant PSt hierarchical structures showed enhanced adsorption properties of organic molecules as hydrophobic adsorbents in an…
While conventional high-resolution techniques in structural biology are challenged by the size and flexibility of many biological assemblies, recent advances in low-resolution techniques such as cryo-electron microscopy (cryo-EM) and small angle X-ray scattering (SAXS) have opened up new avenues to define the structur…
We study the effect of dielectric constant of some poly(styrene)‐type polymer matrix on the percolation threshold in conductive polymer composites with carbon black (CB). We demonstrate that percolation threshold diminishes with an increment of the dielectric constant of polymer matrix. We chose polystyrene and other…
5-6 nm gold nanoparticles were prepared by hydrolytic decomposition of [NMe4][Au(CF3)2] and functionalized in situ with mono- and multivalent thiolated PEG ligands. Time-dependent changes of the nanoparticles were monitored in aqueous NaCl, NaBr, and NaI solutions by UV-Vis spectroscopy, TEM, and HRTEM. The purely ste…
Gallium tungsten oxide thin films formed from a single aqueous precursor. The highly controllable metal content allowed for fine-tuning of film dielectric and optical properties.
A high-yielding nanofiber-based filtration material with excellent performance was developed and provides a promising way to control the severe air pollution at present.
The combination of strong chromophore units and a 2,5-dithienylpyrrole (SNS) monomer backbone resulted in interesting electrochemical and spectroelectrochemical behaviors.
UC luminescence intensities of blue and green emissions are significantly enhanced <italic>via</italic> Li <sup>+</sup> doping.
Migration and selective localization of layered nanoparticles during melt compounding have great influence on phase morphology of polymer blends.
A triangular [Mn <sub>3</sub> ] cluster-based ferrimagnet [Na <sub>2</sub> Mn <sub>3</sub> (SO <sub>4</sub> ) <sub>3</sub> (μ <sub>3</sub> -OH) <sub>2</sub> (μ <sub>2</sub> -OH <sub>2</sub> ) <sub>2</sub> ] <sub>n</sub> exhibits a significant magnetocaloric effect (−Δ <italic>S</italic> <sub>m</sub> = 14.4 J kg <sup>−…
An unusual solvent effect on the synthesis of five manganese complexes [Mn2(L1)2(Py)4](), [Mn2(L1)2(DMSO)4](), [Mn4(L2)4(OH)4](), [Mn4(L3)2(DMSO)7(H2O)](), and [Mn6O2(L4)4(OAc)2(OMe)2(DMSO)4]·MeOH] (), (H3L1 = 5-(2-oxyphenyl)-pyrazole-3-carboxylic acid; H2L2 = 5-(2-oxyphenyl)-pyrazole-3-carboxylic acid amide; H4L3 = d…
A selective chromo- and fluorogenic sensor for Hg <sup>2+</sup> based on triazole-appended BODIPY–piperazine conjugates has been presented.
The tribocorrosion behaviors of 304SS in chloride-containing solutions are pH dependent, which can affect both the corroding and wear behaviors, and eventually determine the total material degradation.
Tunable photoluminescence and single component white light emission is achieved in Pb( <sc>ii</sc> )–Eu( <sc>iii</sc> ) heteronuclear complexes.
We have designed and synthesized two porphyrin containing two-dimensional (2D) polymers based on the imine linkage. Both the 2D polymers are revealed to be 2D organic semiconductors with band gaps of around 1 eV. STM characterization reveals that the rigidity and affinity of building blocks to the surface has essentia…
Graphite may be viewed as a low-surface-energy carbon allotrope with little layer-layer interaction. Other low-surface-energy allotropes but with much stronger layer-layer interaction may also exist. Here, we report a first-principles prediction for one of the known carbon allotropes, bcc-C6 (a body centered carbon al…
The profound effect of annealing on the electrospun poly(ε-caprolactone) scaffold is comprehensively investigated for the first time.
Fe doping induces (i) structural transformation from orthorhombic to cubic (ii) increase in lattice constants and (iii) room temperature positive magnetocapacitance at low magnetic field in CaMn <sub>1−x</sub> Fe <sub>x</sub> O <sub>3−δ</sub> (0.0 ≤ <italic>x</italic> ≤ 0.4) manganites.