Materials Literature
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Purpose Silicone and polyester resins have been prepared at various compositions with the purpose of determining the best performing binder system. The coating materials that have been developed have been analysed and evaluated for their protection ability. Design/methodology/approach Silicone and polyester resins hav…
The effect of hydrogen addition to silicon clusters Si n ( n = 11–15) is examined in terms of the change in their ground state geometry, bonding characteristics (bond lengths, bond angles and Si coordination numbers), structural stability, vibrational spectra and electronic structure. We found that addition of hydroge…
Abstract Supercritical CO 2 (ScCO 2 ) has been used to prepare molecularly imprinted polymers of poly(styrene‐ co ‐maleic acid) (PSMA) for targeted uracil (URA). The condition of ScCO 2 was on 16 MPa between 35 and 50°C. The resultant imprinted membranes prepared at 35 and 50°C bound URA with 9.2 ± 0.10 and 12.6 ± 0.0…
Reforming of diesel fuel is challenging but very attractive for hydrogen production. It can facilitate the market entrance of fuel cells due to the existing infrastructure for distribution of diesel fuel. Reforming in micro reactors enables good heat transfer and therefore small and compact fuel processing systems e.g…
We have investigated the magnetic and optical properties of chemically low temperature-synthesized Zn1– x Fe x O (x = 0.05 and 0.10) diluted magnetic semiconducting nanoparticles (∼7 nm). Observed magnetic behaviour of x = 0.05 samples showed that the net magnetic interaction was antiferromagnetic-like, a feature esta…
Isothermal crystallization after shear in a blend of isotactic polypropylene (iPP) and poly (ethylene-co-octene) (PEOc) was investigated by in situ optical microscopy and shear hot stage under various thermal and shear histories. Crystalline cylindrites during growth were observed in phase-separated iPPPEOc blends for…
Abstract This article describes the use of aryl diazonium salts to attach halogenated functional groups that initiate atom transfer radical polymerization (ATRP) at the surface of conductive substrates. The interest of this procedure lies in the fact that aryl diazonium salts permit the grafting of high‐density initia…
Abstract The surface of polyethyleneterephthalate (PET) nonwoven fabric was modified by He/O 2 atmospheric pressure plasma treatment, varying plasma exposure time. The plasma treated PET surfaces have been analyzed to investigate the chemical nature and morphology of surface by X‐ray photoelectron spectroscopy (XPS) a…
Abstract Atom transfer radical polymerization (ATRP) was applied to synthesize a new kind of star polymers of hyperbranched polyglycerol (HPG) core with multiarms of PS‐ b ‐PtBA and PS‐ b ‐PAA by using the “core first” technique. The HPG core was obtained by anionic polymerization of glycerol first, and then the penda…
Spatial distributions of piezoelectric displacement response across the top electrode have been used in this paper to measure the piezoelectric coefficient d 33 of films based on the converse piezoelectric effect. The technical details and features of a scanning laser Doppler vibrometer have been summarized and discus…
A magnetoelectric laminate composite with electric-field-induced magnetization (EIM) effect was prepared. It was found that the phase shift of EIM in the laminate was highly sensitive to the dc magnetic field near resonance frequency. The dependence of the phase shift of EIM on the dc magnetic field was theoretically…
We present a comprehensive theoretical study of the polarizability of nanotubes and nanotube bundles modeled as periodic systems. Both static and dynamic fields are considered via our recent implementation of analytical methods for polarizability. The dynamic polarizability results in this article are nanotubes' respo…
Magnetoelectronic properties of a two-dimensional (2D) monolayer graphene are investigated by the Peierls tight-binding model. They are dominated by the period, strength, and direction of a spatially modulated magnetic field. Such a field could induce the reduction in dimensionality, change of energy dispersions, anis…
We demonstrated highly sensitive detection of carbon monoxide (CO) down to 1 ppm at room temperature using platinum-decorated single-walled carbon nanotubes (Pt-SWNTs). The obtained sensitivity to CO was 3–4 orders higher than the values reported for functionalized SWNTs, and was achieved by the controlled deposition…
We study the electromagnetic surface waves localized at an interface separating a homogeneous dielectric medium and a semi-infinite one-dimensional photonic crystal made of alternative left-handed metamaterial and right-handed material. An analytical direct matching procedure within the Kronig-Penney model was applied…
The room‐temperature refractive index is measured for three different prior cooling rates (approximately 10, 50, and 250 K/h) for two glasses especially developed for precision molding. The empirical logarithmic relationship between the cooling rate and the refractive index is also reproduced for the comparatively hig…
Purpose This paper aims to investigate the protection efficiency of a thin film of electrochemically synthesized conducting polymers, such as poly m‐toluidine, poly N‐methyl aniline, and its copolymer, poly (aniline‐co‐N‐methyl aniline) (PANINMA), on plain carbon steel in 0.1 M HCl. It also attempts to compare the pro…
Microcellular biomorphous Al 2 O 3 was produced by Al‐vapor infiltration in pyrolyzed rattan and pine wood‐derived biocarbon preforms. At 1600°C the biocarbon preforms reacted with gaseous aluminum to form Al 4 C 3 . After oxidation in air at temperatures between 1550° and 1650°C, for 3 h, the biocarbon preforms were…
Nanocrystalline barium titanate (BaTiO 3 , BT) was synthesized hydrothermally at 220°C by reacting barium hydroxide with titanium dioxide. The resulting BT nanopowders were characterized by X‐ray diffraction (XRD), selected area electron diffraction (SAED), Raman spectrum, scanning electron microscopy (SEM), and high‐…
The effects of 10 paramagnetic metal complexes (Fe(III)EDTA(H2O)-, Fe(III)EDTA(OH)2-, Fe(III)PDTA-, Fe(III)DTPA2-, Fe(III)2O(TTHA)2-, Fe(III)(CN)6(3-), Mn(II)EDTA(H2O)2-, Mn(II)PDTA2-, Mn(II)beta-EDDADP2-, and Mn(II)PO4(-)) on F- ion 19F NMR transverse relaxation rates (R2 = 1/T2) were studied in aqueous solutions as…