Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Single-walled carbon nanotubes (SWNTs) exhibit advanced electrical and surface properties useful for high performance nanoelectronics. Important to future manufacturing of nanotube circuits is a large-scale assembly of SWNTs into aligned forms. Despite progress in assembly and oriented synthesis, pristine SWNTs in ali…
This paper describes a topochemical synthetic approach to Co2+-Fe3+ layered double hydroxides (LDHs). Micrometer-sized hexagonal platelets of brucite-like Co2/3Fe1/3(OH)2 were first prepared by a homogeneous precipitation of an aqueous solution of divalent cobalt and ferrous ions through hexamethylenetetramine (HMT) h…
Nuclear hormone receptors (NHRs) represent a diverse class of ligand-dependent transcriptional regulators. NHRs that have been rendered functionally inactive due to mutations that abrogate proper ligand binding can often be rescued by appropriately designed hormone analogues. The analogue-specific receptor-ligand pair…
Polycarbonate (PC) and polydimethylsiloxane (PDMS) rubber blend were made by melt blending using a twin-screw extruder. The blends were characterized by mechanical testing, thermal studies, electrical properties and morphological studies. The notched lzod impact strength increased greatly when the rubber content was 2…
Abstract A novel photocatalyst of iron(II)–tetra(5,6-dichloro-1,4-dithin)porphyrazine (abbreviated as FePz(dtnCl2)4) has been found to exhibit high catalytic activity to activate hydrogen peroxide for oxidative degradation of organic pollutants under visible light irradiation (λ > 420 nm) and wide pH range, in…
The validity of the Wiedemann-Franz law (WFL) for icosahedral quasicrystals belonging to the families AlCu(Fe,Ru) and AlPd(Mn,Re) is discussed. We exploit some characteristic features in the electronic structure in order to obtain closed analytical expressions for the transport coefficients in terms of the Hurwitz zet…
Cashew nut shell liquid (CNSL) is a cheap agro by-product and a renewable resource, which consists mainly of substituted phenols. A CNSL-based reactive resin was used in this study as binder for particleboards. The resin was prepared by heating a mixture of CNSL, phenol, and hexamethylenetetramine. Properties of the b…
Poly(3-hydroxy)butyrate (PHB) is a microbial polyester, which provides the advantages of biodegradability and biocompatibility but it is brittle and has low abilities for some chemical modifications. To overcome such problems reactive blending was done with a glassy acrylic polymer, poly(methylmethacrylate) (PMMA) wit…
Collisional energy transfer at the surface of poly(methyl methacrylate) thin films on $\mathrm{Si}{\mathrm{O}}_{x}∕\mathrm{Si}$ was investigated using low-energy neutral helium atom scattering. Analysis of spectra in two scattering regimes yields results consistent with the hypothesis that thinner films are stiffer, s…
This numerical study investigates the effect of cross section geometry on the bending of a beam and also buckling of a column made of shape memory alloy (SMA). It incorporates superelastic SMA's non-linear stress—strain relations, including the non-symmetric behavior in tension and compression. Primarily, an arbitrary…
Linear carbon chains appear at interstitial positions between adjacent double-walled carbon nanotubes (DWNTs; see image) during thermal treatment of DWNT bundles in argon. The characteristic Raman line, known as the coalescence-inducing mode (CIM) and associated with short chains that appear during the nanotube coales…
A nuclear track etched polycarbonate membrane filter with numerous cylindrical nanopores was applied as a nanoporous template for growing metallic nanowires. Nickel, cobalt, and iron nanowires were electrodeposited into the cylindrical nanopores. Cathodic polarization curves were measured to determine an optimum condi…
There is increasing interest in the usefulness of block copolymer micelles as drug delivery vehicles. However, their subcellular distribution has not been explored extensively, mostly because of the lack of adequately labeled block copolymers. In a previous study, we showed that fluorescently labeled block copolymer m…
Abstract Nickel ferrite (NiFe 2 O 4 ) was synthesized by the micelles mixing method, using lyophilized coconut oil. The method leads to the formation of ferrite nanoparticles. Nickel ferrite was prepared in coconut oil suspension and annealed during 4 h, at 400, 600, 800, 1000, and 1200°C. The X‐ray diffraction (XRD)…
Abstract The radical co‐ and terpolymerization of perfluoro(4‐methyl‐3,6‐dioxaoct‐7‐ene) sulfonyl fluoride (PFSVE) with 1,1‐difluoroethylene (or vinylidene fluoride, VDF or VF 2 ), hexafluoropropene (HFP), chlorotrifluoroethylene (CTFE), and bromotrifluoroethylene (BrTFE) is presented. Although PFSVE could not homopol…
Recently the liquid–liquid transition (LLT) was found in a molecular liquid, triphenyl phosphite, which allows us to follow the kinetics of the transformation of one liquid to another. Here we investigate the microscopic structural change during the LLT by means of time-resolved synchrotron x-ray scattering measuremen…
Porous, noncrosslinked polyelectrolyte-complex thin films (see figure), which will find applications in biomedicine, for example for drug or gene delivery, are achieved by using a simple, mild, and efficient method. Layer-by-layer assembly of polyanion and a blend of two polycations is followed by removal of the reduc…
Abstract With the addition of polyvinylpyrrolidone (PVP), alumina sol with an aluminum sec ‐butoxide/water molar ratio of 1 : 45 was synthesized. The surface tension of this alumina sol was found to be lower by 35% than the sol without PVP. Alumina/PVP hybrid film with a critical thickness up to 2 μm was fabricated by…
Nylon 6 nanocomposites were prepared using melt intercalation technique. Sodium montmorillonite (Na-MMT) was modified with octadecyl ammonium salt to evaluate the effect of clay modification on the performance of the nanocomposites. A comparative account with the nanocomposites prepared, using commercial clay cloisite…
Abstract A series of poly( L ‐lysine)s grafted with aliphatic polyesters, poly( L ‐lysine)‐ graft ‐poly( L ‐lactide) (PLy‐ g ‐PLLA) and poly( L ‐lysine)‐ graft ‐poly(ϵ‐caprolactone) (PLy‐ g ‐PCL), were synthesized through the Michael addition of poly( L ‐lysine) and maleimido‐terminated poly( L ‐lactide) or poly(ϵ‐cap…