Materials Literature
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The induced aggregation of achiral building blocks by a chiral species to form chiral aggregates with memorized chirality has been observed for a number of systems. However, chiral memory in isolated aggregates of achiral building blocks remains rare. One possible reason for this discrepancy could be that not much is…
Our ability to directly characterize the atomic and electronic structures is crucial to developing a fundamental understanding of structure-property relationships in complex-oxide materials. Here, we examine one specific example, the misfit-layered thermoelectric material Ca${}_{3}$Co${}_{4}$O${}_{9}$, which exhibits…
The B, N, S, Si and P atoms doped single walled (5, 5) carbon nanotubes were studied by density functional theory B3LYP/3-21G (d) with the periodic boundary conditions. The ultra long tube models were calculated and the structures, energies and the band structures were obtained. The N, Si and S doped nanotubes have na…
Series of poly (vinyl alcohol)/chitosan (PVA/CS) electrospun nanofibers with different weight ratio of PVA and CS were fabricated by electrospinning method. The surface morphology, diameter, and structure of electrospun nanofibers were investigated by scanning electron microscopy (SEM). As a result of PVA and CS compo…
First examples of liquid crystalline chloro-bridged dinuclear platinum organyls carrying semiperfluorinated alkyl chains at their peripheries have been synthesised. The liquid crystalline properties were investigated using polarised optical microscopy, differential scanning calorimetry and X-ray scattering. Compounds…
The effects of electronic states and air exposure on the spectroscopic properties of manganese phthalocyanine (MnPc) have been examined. The observed features of the Q-band in the absorption spectra can be explained by intrinsic electronic properties of MnPc, i.e., the formation of singly charged molecules by charge t…
Biodegradable and biocompatible poly( p -dioxanone)–poly(tetramethylene oxide)glycol (PPDO–PTMEG) multiblock copolymers with excellent shape memory effect and mechanical properties were developed by coupling PPDO-diol and PTMEG-diol with 1,6-hexamethylene diisocyanate (HDI). The influences of chain structure, micropha…
In this research, an equimolar mixture of DCC and DMAP has been used to catalyze the L-LA ROP in DCM at r.t. Kinetically, the mixture has been proved as efficient as the DMAP alone, which has been demonstrated activating both L-LA and free alcohol during the process. The presence of the DCC improves the living charact…
ZnO nanopowders are synthesised by a hydrothermal method followed by thermal decomposition. The phase and surface morphology of the obtained powders are characterised by X-ray diffraction, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). A ZnO/CNT composite electrode was prepared by mixin…
We have investigated thermoelectric (TE) properties for single crystals of perovskites Sr${}_{1\ensuremath{-}x}$Ca${}_{x}$Ti${}_{1\ensuremath{-}y}$Nb${}_{y}$O${}_{3}$ for 0 $\ensuremath{\leqslant}$ $x$ $\ensuremath{\leqslant}$ 0.4 and 0 $\ensuremath{\leqslant}$ $y$ $\ensuremath{\leqslant}$ 0.03 below room temperature…
Abstract The present study investigates the degradation behavior of various high‐molecular‐weight acrylic polymers (50,000 < Mn/g mol−1 < 100,000), namely poly(methyl methacrylate) (PMMA), poly(n‐butyl methacrylate) (PBMA), poly(n‐butyl acrylate) (PBA), and poly(lauryl methacrylate) (PLMA), under extreme environmental…
The development of autonomous healing material has an enormous scientific and technological interest. In this context, this research work deals with the investigation of autonomous healing behavior of epoxidized natural rubber (ENR) and its blends with ethylene methacrylic acid ionomers. The autonomous healing behavio…
Pyrimidine multicomponent mixture used as a base for the preparation of ferroelectric liquid crystalline mixtures after doping with chiral dopants was tested in the aim of establishing the tilt angle dependence on the concentration of chiral dopant. The compounds being components of this mixture were doped with the sa…
Abstract The unique combination of the gas like viscosity and liquid like density of supercritical CO2 (scCO2) is exploited to blend poly(D,L‐lactic acid) (PDLLA) and poly(ethylene glycol) (PEG) at near ambient temperatures. This novel process lowers the polymer blend viscosity and also permits incorporation of therma…
The effects of deviation from stoichiometric composition on the structural and magnetic properties of cobalt ferrite, CoxFe3−xO4 (x = 0.2 to 1.0), are presented. Both CoFe2O4 and Fe3O4 have a spinel crystal structure, and it might be expected that intermediate compositions would have the same structure. However, resul…
Mechanisms of peptide aggregation on hydrophobic surfaces are explored using molecular dynamics simulations with a coarse-grained peptide representation. Systems of peptides are studied with varying degrees of backbone rigidity (a measure of β-sheet propensity) and degrees of attraction between their hydrophobic resid…
A novel application of phosphotungstic acid, H 3 PW 12 O 40 (PWA) supported on MCM-41 molecular sieve as a solid acid catalyst has been demonstrated for the synthesis of phenolphthalein by hydroxyalkylation of phenol and phthalic anhydride. PWA/MCM-41 (20%) showed the highest activity as compared to that of parent PWA…
Volume is indexed by Thomson Reuters CPCI-S (WoS).The object of ICMSET 2011 was to provide a forum for the discussion of new developments, recent progress and innovations in the fields of Materials Science and Engineering Technology. These 145 papers gather together the latest know ledge in this field and will be of i…
Plasma enhanced atomic layer deposition (PEALD)-grown mixed phase RuTaN films has been studied as a direct plate material for Cu electroplating within interconnects. It was seen that these liners behaved as excellent Cu diffusion barrier and could be scaled down to sub-5 nm thicknesses. High resolution TEM based struc…
Soft templated mesoporous carbon films (ca. 60 nm thick) are fabricated by the cooperative assembly of poly(styrene- block -ethylene oxide) (PS- b -PEO) with phenolic resin, where the pore sizes are tuned by the addition of polystyrene oligomers (hPS) to this self-assembling system. Significant differences in the morp…