Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVCommentNEXTComment on “Is a Sessile Drop in an Atmosphere Saturated with Its Vapor Really at Equilibrium?” and Subsequent CriticismC. Della Volpe and S. SiboniView Author Information Department of Materials Engineering and Industrial Technologies, University of Trento, Via Mesiano 77,…
Abstract In the present study, first, maleic anhydride‐styrene (MA‐St), maleic anhydride‐allyl phenyl ether (MA‐APhE), maleic anhydride‐heptene‐1(MA‐Hp), and maleic anhydride‐allyl propionate (MA‐AP) copolymers have been synthesized in different solvents in the presence of azobisisobutyronitrile (AIBN) at 70°C. Then,…
Abstract A systematic approach is developed to study the ligno sulfonic acid sodium salt (LSA) protonation or doping process with polyaniline emeraldine base (Pani‐EB) in organic solvents like dimethyl sulfoxide, and the influence of LSA‐doping on the properties of polyaniline was investigated in detail. The compositi…
Abstract There is an increasing interest in the use of conducting polymers for a wide variety of applications. This includes the study and development of alternative contact‐connector materials. The main aim is to achieve overall improvements in performance as well as cost effectiveness. Currently, extrinsic conductin…
Abstract A chitosan (CS) derivative, N ‐(4‐methylimidazole)‐chitosan (MIC), was synthesized, and a cobalt (II) complex of bis(salicylideneethylene diamine), (CoSalen), was immobilized on it. The structure of the polymer‐immobilized CoSalen was characterized by elemental analysis, IR, XPS, fluorescence and ESR spectros…
Abstract Bisphenol‐C‐formaldehyde‐toluene‐2,4‐di isocyanate polyurethane (PU) has been synthesized at room temperature and used for the fabrication of jute and jute–rice husk/wheat husk hybrid composites. PU–jute and PU–jute–RH/WH composites were prepared under pressure of 30.4 MPa at room temperature for 8 h, while P…
Abstract More than 25 PP/PS/SEP blends, where PP is isotactic polypropylene, PS is atactic polystyrene, and SEP is poly(styrene‐ block ‐ethylene‐ co ‐propylene), were prepared. The main objective of this study was to investigate the influence of PP/PS viscosity ratio, λ TM , on the blends' morphology. It was shown tha…
Abstract Gourd ( Luffa cylindrica ) was converted into an anion exchange material through its etherification using 2‐chloroethyldiethylamine hydrochloride (CEDA‐HCl) followed by crosslinking using epichlorohydrin. The effects of the different etherification reaction parameters (CEDA concentration, NaOH concentration,…
A monofunctional prephenate dehydrogenase (PD) from Aquifex aeolicus was expressed as a His-tagged protein in Escherichia coli and was purified by nickel affinity chromatography allowing the first biochemical and biophysical characterization of a thermostable PD. A. aeolicus PD is susceptible to proteolysis. In this r…
Recent experiments have shown that silver salts supported on mesoporous silicas display excellent adsorption selectivities of ethylene over ethane and propylene over propane. Employing the techniques of density functional theory, we have investigated the fundamental bases of this separation process by examining silver…
We provide evidence of low-temperature hydrogen evolution and possible hydrogen trapping in an anthracite coal derivative, formed via reactive ball milling with cyclohexene. No molecular hydrogen is added to the process. Raman-active molecular hydrogen vibrations are apparent in samples at atmospheric conditions (300…
Abstract To understand the contribution to thermal conductivity by the length of the molecular chains in high strength ultra‐high‐molecular‐weight polyethylene (UHMW‐PE) fiber, the thermal conductivity in the range of low temperature was investigated for high‐strength UHMW‐PE fiber (Toyobo, Dyneema®; hereinafter abbre…
Abstract The present article reports the effect of gamma irradiation on the hardness behavior of the interpenetrating polymer networks (IPNs) of gelatin and polyacrylonitrile (PAN). Various compositions of gluteraldehyde‐crosslinked gelatin and N , N ′‐methylene bis acrylamide (MBA)‐crosslinked PAN were prepared and i…
Abstract The influence of solid‐state chlorinated polyethylene of various chlorine content and residual crystallinity on the mechanical properties of rigid poly(vinyl chloride) has been studied. The impact strength of poly(vinyl chloride) was found to increase significantly as 10–20 mass% chlorinated polyethylene, con…
Helical carbon nanofibers were synthesized by means of acetylene pyrolysis at 450 degrees C using Fe nanoparticles as catalyst. There is no need to modify the Fe nanoparticles by a chiral reagent. The carbon nanofibers generated are crystalline and symmetric, with the (110) plane of Fe particle being the mirror plane.…
The dissolution process of model insoluble peptide sequences was investigated in view of the electron acceptor (AN) and electron donor (DN) solvent properties. The Alzheimer's disease-inducing (1-42) Abeta-amyloid peptide and its (1-21) fragment, the (66-97) transmembrane bradykinin B2 receptor sequence, and the stron…
A covalent/electrostatic layer-by-layer self-assembly method was used to achieve polar ordering of a water soluble, reactive dye in the fabrication of nonlinear optical (NLO) films. We observed a quadratic relationship between the second harmonic intensity I2(omega) and bilayer number for all films made with Procion B…
A novel synthetic technology of p -nitrobenzoic acid has been investigated with dioxygen by using metalloporphyrins RTPPM III Cl (M = Fe, Co, Mn) as biomimetic catalysts. Oxidation of p -nitrotoluene to p -nitrobenzoic acid under 2.0 MPa of O 2 in the presence of a microamount of metalloporphyrins (RTPPM III Cl) at 55…
Abstract Changes in the crystal morphology, crystallinity, and the melting temperature of thermoplastics resulted in significant changes in the mechanical behavior of composites containing them. For this reason, the research of crystal morphology and crystallization kinetics in thermoplastic composites became an impor…
Abstract Calcium carbonate (CaCO 3 )/high density polyethylene (HDPE) composites were prepared in a HAAKE twin screw extruder, using the experimental conditions defined by the factorial experimental design presented in a prior study. In this study, the effect of different grades (Ca 1 and Ca 2 ) and CaCO 3 content (va…