Materials Literature
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Recycling Day: A heterogeneous aminotroponiminate–Zn complex-functionalized mesoporous material prepared by grafting and post-synthetic modification, is used as a recyclable efficient catalyst for the intramolecular hydroamination reaction of non-activated alkenes. Hydroamination is carried out through five cycles wit…
There is considerable interest in the inclusion of functionalised nanoparticles in discotic liquid crystals as they exhibit interesting self-assembled structures and electronic properties. In this view, we have carried out magnetic susceptibility, DC conductivity and small angle X-ray diffraction studies (SAXS) on hex…
An experimental screening design was used to evaluate the effects of spark plasma sintering (SPS) parameters such as heating rate, sintering temperature, dwell duration, and green‐shaping processing on the relative density, grain size, and the optical properties of polycrystalline alumina (PCA). It is shown that heati…
A molecular cake: Zinc chlorins with different dendron wedges can form linear or circular self-assembled structures with different molecular packing. In particular, zinc chlorins with six alkyl chains in the dendron group self-assemble into hexameric cyclic structures on HOPG (see picture). Such cyclic structures are…
Abstract Nanomaterials made from the conducting polymer polyaniline (PANI) have very unique applications due to their high surface area and ease of processing. The link between synthesis conditions and morphology of PANI nanomaterials has been the subject of numerous investigations in recent years. Formation mechanism…
Purpose The purpose of this paper is to synthesise and characterise novel thermally expandable microcapsules having poly (acrylonitrile (AN)‐methyl methacrylate (MMA)‐butyl acrylate (BA)) copolymer shells and p‐toluenesulphonylhydrazide (TSH) cores. Design/methodology/approach The novel thermally expandable microcapsu…
We present an ab initio study of the effect of iron oxidation on magnetoelectric coupling which appears at the ferromagnet/ferroelectric interface, such as ${\text{Fe}}_{2}/A{\text{TiO}}_{3}(001)$ $(A=\text{Ba},\text{Pb})$. The oxygen coverage, $c$, ranging between one half and two adsorbed O per each Fe atom was simu…
A noniterative physics-based compact model is developed for carbon nanotube (CNT) transistor and interconnect in order to support early stage design exploration. Based on the derivation of surface potential, the new model accurately predicts both$I$–$V$and$C$–$V$characteristics. It is scalable to key process and desig…
We have considered the phase behavior of sphere-forming block copolymers in confinement by means of dynamic density functional theory (DDFT). We have in particular focused on the role of the chain architecture by choosing two equivalent AB and ABA block copolymers. The role of surface fields (ε M ) and film thickness…
The crystal structures and magnetic properties of new molecule-based magnets, [CrCyclam(C[triple bond]C-3-thiophene)(2)][Ni(mdt)(2)] (1) and [CrCyclam(C[triple bond]C-Ph)(2)][Ni(mdt)(2)](H(2)O) (2) (Cyclam = 1,4,8,11-tetraazacyclotetradecane, mdt = 1,3-dithiole-4,5-dithiolate), are reported. The crystal structures of…
We have experimentally investigated multicomponent diffusion in a protein-polymer-salt-water quaternary system. Specifically, we have measured the nine multicomponent diffusion coefficients, D(ij), for the lysozyme-poly(ethylene glycol)-NaCl-water system at pH 4.5 and 25 degrees C using precision Rayleigh interferomet…
Protonated, layered transition-metal oxides H 1− x Nb 1− x Mo 1+ x O 6 with various Nb and Mo ratios were examined as solid acid catalysts. The effects of transition-metal composition on layered crystal structure, solid acid proprieties, and catalytic activities were investigated. X-ray diffraction (XRD) patterns reve…
This paper describes the miscibility and self-assembly, mediated by hydrogen-bonding interactions, of new block copolymer/nanoparticle blends. The morphologies adopted by the immiscible poly[(ε-caprolactone)-block-(4-vinyl pyridine)] (PCL-b-P4VP) diblock copolymer changes upon increasing the number of competitive hydr…
Lead‐free piezoelectric ceramics of an a (Bi 0.5 Na 0.5 )TiO 3 – b (Bi 0.5 K 0.5 )TiO 3 – c BaTiO 3 (BNBK) ternary system close to the composition of MPB have been widely investigated in recent decades. In this research, the MPB Linear Combination Rule (LCR) is introduced to explore the ternary system of lead‐free pie…
Highly luminous hollow chloroapatite blue phosphors were directly synthesized by an aerosol route. It is noteworthy that the hollow structures of the chloroapatite phosphors were achieved in a rapid manner (within several seconds) without using any templates, which offers tremendous advantages, such as saving time and…
Electrically aligned regenerated cellulose films were fabricated and the effect of applied electric field was investigated for the piezoelectricity of electro-active paper (EAPap). The EAPap was fabricated by coating gold electrodes on both sides of regenerated cellulose film. The cellulose film was prepared by dissol…
Perfluorocarbon chains, that is, perfluoroethyl, CF 3 CF 2 −, perfluoro- n -propyl, CF 3 CF 2 CF 2 −, perfluoro- iso -propyl, (CF 3 ) 2 CF−, and perfluoropolyether (PFPE) residues, were covalently bonded on the surface of a carbon black using perfluorodiacyl and PFPE peroxides. Thermal decomposition of the fluorinated…
As a novel radical building block possessing multiple hydrogen bond functionality, we have designed and synthesised diaminotriazine-substituted nitronyl nitroxide (DAT-NN; 1). The diaminotriazine moiety of 1 forms two kinds of hydrogen bonding and molecule 1 forms an S = 1/2 uniform antiferromagnetic Heisenberg chain…
Purpose The purpose of this paper is to study the corrosion behavior of copper in 3.5 percent NaCl solutions with and without 3‐amino‐5‐mercapto‐1,2,4‐triazole (3‐AMT). Design/methodology/approach Weight‐loss measurement, potentiodynamic polarization, and electrochemical impedance spectroscopy are applied to study the…
The slight incommensurate modulation of the structure of Bi(2)Mn(4/3)Ni(2/3)O(6) is sufficient to suppress the electrical polarization which arises in commensurate treatments of the structure, due to antiferroelectric coupling of local polar units of over 900 A(3). The incommensurate structure is produced by the compe…