Materials Literature
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One of the key issues for the development of high toughness carbon nanotube (CNT) reinforced composites is the control of the interfacial bond between the CNT and the matrix. Here, we introduce a novel technique to facilitate the homogeneous coating of single-walled carbon nanotube (SWCNT) bundles with polycarbosilane…
The measurements on radioactive actinide isotopes (curium-248) were performed using very small sample quantities (micrograms) to minimize the sample activity. Resonant inelastic x-ray scattering (RIXS) spectra of curium oxide at the Cm $5d$ edge were measured for the first time. RIXS data are compared with theoretical…
Abstract Incorporation of zeolite into polyurethane (PU) membranes was investigated by using as‐synthesized and calcined zeolite beta particles at two different loading contents (0.1 and 1 wt %). The chemical interaction between the zeolite beta crystals and PU was observed by ATR‐FTIR spectroscopy. The SEM results su…
Abstract Electrochemical polymerization of 3,4‐ethylenedioxythiophene (EDOT) was carried out in presence of two different surfactants, sodium dodecyl sulfate (SDS) and cetyl trimethyl ammonium bromide (CTAB) in aqueous medium. The cyclic voltammograms of the polymers exhibited well‐defined redox peaks at E ox = 140 mV…
Abstract The melting, crystallization behaviors, and nonisothermal crystallization kinetics of the ternary blends composed of poly(ethylene terephthalate), poly(trimethylene terephthalate) (PTT) and poly(buthylene terephthalate) (PBT) were studied with differential scanning calorimeter (DSC). PBT content in all ternar…
The temporal evolution of the coordination environments of B atoms in simple and complex borosilicate glasses following temperature jumps near the glass-transition temperature has been studied using $^{11}\mathrm{B}$ magic-angle-spinning NMR spectroscopy. The relaxation kinetics for boron speciation is found to be in…
Abstract Good optical quality single crystals of zinc hydrogen phosphate (ZnHPO 4 ) having dimensions up to 8×2×2 mm 3 have been grown with the aid of sodium meta silicate gel. Single crystal XRD studies confirm that the crystal belongs to the orthorhombic system with space group P2 1 2 1 2 1 . The functional groups p…
Blends of poly(vinyl chloride) (PVC) and poly(butylene adipate) (PBA) with varying degrees of branching were analyzed with respect to migration resistance during aging in water, preservation of material properties, and thermal stability. Gas chromatography-mass spectrometry, water absorption, weight loss, thermogravim…
1,6-Diisocyanatohexane and dimethyl sulfoxide were exploited as crosslinking agent and reaction solvent, respectively, for gelatin modification. Crosslinked samples were fractionated and analyzed by thermogravimetric analysis, infrared spectroscopy, acid and base titrations, and swelling measurements. The yield of cro…
Abstract The oxidative polycondensation reaction conditions of 2‐methoxy‐6‐[(4‐methylphenyl)imino]methylphenol (2M‐4‐MPIMP) by using oxidants such as air O 2 , H 2 O 2 and NaOCl were studied in an aqueous alkaline medium between 30 and 90°C. The structures of synthesized monomer and oligomer were confirmed by FTIR, UV…
A straightforward methodology towards the supramolecular synthesis of novel organometallic polymers with attractive optical properties is presented. By coordinating bifunctional fluorescent cruciform molecules through ditopic metalated pincer complexes (Pd or Pt), we have synthesized a new class of well-defined coordi…
Nonlinear composite dielectric materials can be formed through the inclusion of appropriate fillers in polymers. Depending on the type of filler used, the composite material can then possess either an electrical field-dependent conductivity (FDC) or an electrical field-dependent permittivity (FDP). These nonlinear pro…
Abstract The effects of x‐beam irradiation with different doses on microhardness and its related physical constants on [K y (NH 4 ) 1‐y ] 2 ZnCl 4 mixed crystals with concentrations, y equals 0.000, 0.232, 0.644, 0.859 or 1.000 has been studied. The tests were performed for x‐doses from 0.2 kGy up to 1.6 kGy for loads…
Abstract Novel polyphenylene–metal complexes with discotic, linear, and dendritic geometries are synthesized by using a facile approach consisting of reactions between Co 2 (CO) 8 and ethynyl functionalities in dichloromethane. Various carbon nanoparticles (CNPs), including graphitic carbon nanotubes (CNTs), graphitic…
Abstract In this article, the grafting copolymerization of maleic anhydride (MAH) onto high density polyethylene (HDPE) was carried out through solvothermal process. Infrared spectra (IR) revealed that MAH had been successfully grafted onto the HDPE backbone. The influences of the reaction parameters on the grafting c…
Copper (Cu) thin films with thicknesses ranging from 300 to 425 nm were prepared at various argon (Ar) pressures on p-type silicon substrates by direct current magnetron sputtering deposition. X-ray diffraction (XRD) and Karl Suss four-point probe were employed to study the film crystallinity and conductivity, respect…
Abstract Two different types of surface modifiers, 3‐aminopropyltriethoxysilane and formamide, were applied to carbon black (CB) particles to lower electrical resistivity of polymer composites prepared by treated CB. Two different matrices, low‐density polyethylene and nylon 6, were chosen to compound with surface mod…
We performed second harmonic generation (SHG) measurements in the nematic liquid crystal formed from polar aromatic polyester which comprises 4-hydroxybenzoic acid and 6-hydroxy-2-naphthoic acid in a molar ratio of 73/27. The polymer is commercially available and called Vectra. The shear-oriented nematic liquid crysta…
Porous 3D polymer scaffolds prepared by TIPS from PLGA (53:47) and PS are intrinsically hydrophobic which prohibits the wetting of such porous media by water. This limits the application of these materials for the fabrication of scaffolds as supports for cell adhesion/spreading. Here we demonstrate that the interior s…
Environmental pollution caused due to petroleum-based plastics is growing worldwide. Soy protein isolate, a potential alternative to some petrochemical polymers, is cheap and available in plenty. This natural biopolymer is chemically modified with urea at 5, 10, and 20% (w/w) and 2M (molar) for better processing condi…