Materials Literature
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Abstract A novel wood–plastic compatibilizer system containing a paper wet‐strength agent as a wood‐binding domain and stearic anhydride as a polyethylene (PE) binding domain was investigated. Treatment of wood flour with a commercial paper wet‐strength agent Kymene® 557H (simply called Kymene) before the mixing of PE…
A solution-phase, precursor method has been demonstrated for the large-scale synthesis of single crystalline nanowires of lead with uniform diameters in the range 50−90 nm and lengths up to several millimeters. In a typical procedure, the nanowires were synthesized by refluxing a mixture of Pb(CH 3 COO) 2 ·3H 2 O and…
The protonated imidazole diphosphopentamolybdenum polyoxometalate (C4H7N2)4[HP2Mo5O23]·H3O· 4.5H2O has been synthesized and its structure has been determined by single-crystal X-ray diffraction. This compound crystallizes in the triclinic crystal system, space group P(−1), a = 10.171(2), b = 11.839(2), c = 20.170(4) Å…
We report a study of the freezing and melting of fluids confined within multi-walled carbon nanotubes with an internal diameter of 5 nm, using experimental measurements and molecular simulations. Dielectric relaxation spectroscopy was used to determine the experimental melting points and relaxation times of nitrobenze…
Abstract Ca 3 SiO und sieben weitere inverse Perowskite M 3 TO (M = Ca, Sr, Yb; T = Si, Ge, Sn, Pb) wurden durch die Reaktion 6 M + TO 2 + T = 2 M 3 TO bzw. 3 M + TO = M 3 TO für Yb 3 PbO in verschlossenen Reineisentiegeln unter Argon bei Temperaturen von 1123—1173 K dargestellt. Die Kristallstrukturen aller Verbindun…
Vascular tissue can penetrate implants that have an interconnected porous structure. The extent of vascularization is heavily dependent on a number of factors, including the nature of the material as well as the size and porosity of the implant's pore morphology. Currently, it is still not clear what mechanisms are co…
Gold nanoparticles are excellent biocompatible surfaces for the immobilization of enzymes. However, separation of the gold nanoparticle-enzyme bioconjugate material from the reaction medium is often difficult. In this study, we investigate the assembly of the gold nanoparticles on the surface of the amine-functionaliz…
Abstract The synthesis and characterization of dendritic homopolymers and block copolymers of ϵ‐caprolactone and lactide ( L ‐lactide and racemic lactide) were performed with multifunctional initiators in combination with living polymerization and the selective placement of branching junctures in a divergent growth st…
Abstract A method of recycling postconsumer poly(ethylene terephthalate (PET) using transesterification was studied. Shredded flakes of postconsumer PET waste were transesterified with higher diols, such as 1,4‐butanediol, 1,4‐cyclohexane dimethanol, and 1,6‐hexanediol, to yield copolyesters in the presence of Ti(iPrO…
Dynamic models for facet formation often employ a regularization of the surface energy based on a corner energy term. Here we consider the effect of this regularization on the equilibrium shape of a solid particle in two dimensions. Using matched asymptotic expansions we determine the explicit solution for the corner…
This paper examines the important, and oftentimes dominant, role of particles in lead and copper corrosion by-product release from stagnant pipes. For copper pipes, orthophosphate generally reduced soluble copper levels compared to pipes with no inhibitor but had little effect on particulate copper, while pipes dosed…
Abstract Three new thiostannates [M(en) 3 ] 2 Sn 2 S 6 (en = ethylenediamine, M = Mn( 1 ), Co( 2 ) and Zn( 3 )) were synthesized by solvothermal method. The crystals were grown up in a Teflon‐lined steel autoclave at temperature about 180 °C. All the three compounds consist of discrete [Sn 2 S 6 ] 4— anions, which are…
OBJECTIVE: Vein graft disease involves neointimal smooth muscle cells, the origins of which are unclear. This study sought to characterize and quantitate vein graft infiltration by cells extrinsic to the graft in a mouse model of vein graft disease. METHODS AND RESULTS: Inferior vena cava-to-carotid artery interpositi…
Biofunctional nanohybrids are synthesized from layered double hydroxide (LDH) and the vitamins such as ascorbic acid and topopherol acid succinate. Either ion exchange or copricipitaion leads to successful intercalation of the vitamins into gallery space of LDH that offers a new route to safe preservation of bioactivi…
Using a mica surface force balance, we have measured the interactions between mica surfaces bearing chitosan (a common, naturally occurring, cationic polysaccharide; the average molecular weight of our sample was 6 × 10 5, degree of deacetylation 85%) adsorbed from acetic acid solution. We also introduced a polyionic…
Graft polymerization has been used, for the first time, to prepare a dense conductive polymer coating on free-standing luminescent silicon nanoparticles. The silicon nanoparticles maintained their photoluminescence and crystallinity after surface modification. The nanoparticles were first surface hydroxylated and then…
The influence of surface structure on NO chemisorption and dissociation on Pt[100]-(1x1), Pt[211], and Pt[410] has been studied using density functional theory slab calculations with the generalized gradient corrections. The presence of steps on Pt[211] strengthens the NO-surface chemisorption bond, but the barrier fo…
A class of translation bounded complex measures, which have the form of weighted Dirac combs, on locally compact Abelian groups is investigated. Given such a Dirac comb, we are interested in its diffraction spectrum which emerges as the Fourier transform of the autocorrelation measure. We present a sufficient set of c…
Atomistic simulations of double-walled carbon nanotubes (DWCNTs) as rotational bearings were performed. Molecular mechanics (MM) calculations show that the interlayer energy surface of the bearings is nearly flat. Thermal effects on the bearings were studied with molecular dynamics (MD) simulations at finite temperatu…
The uniaxial compressive response of steel fiber-reinforced concrete (SFRC) subjected to high strain rate loading is presented. Details of an experimental investigation using a 75-mm-diameter split Hopkinson pressure bar (SHPB) are outlined. The investigation focuses on recorded data and results in distinguishing the…