Materials Literature
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One-dimensional Au rows are produced on the TiO 2 (110) surface by controlled photon-stimulated desorption followed by Au deposition at 750 K. In the resulting (1 × 2) structure, O vacancies are replaced by Au atoms, as demonstrated by combined laterally resolved x-ray spectroscopy and micro-LEED (low-energy electron…
We present measurements on the single-molecule magnet ${\mathrm{Fe}}_{8}$ in the presence of pulsed microwave radiation at $118\phantom{\rule{0.3em}{0ex}}\mathrm{GHz}$. The spin dynamics is studied via time-resolved magnetization experiments using a Hall-probe magnetometer. We investigate the relaxation behavior of ma…
Abstract To gain a foam plastic with excellent mechanical properties, tensile mechanical properties of methacylic acid/acrylonitrile (MAA/AN) copolymer and the corresponding foam microstructure were studied, and furthermore effects of the density, heat treatment, and crosslinking agent on foam mechanical properties we…
Abstract Poly(butylene succinate) (PBS)/clay nanocomposites were prepared by condensation polymerization of 1,4‐butanediol and succinic acid in the presence of an organoclay containing epoxy groups (TFC) and titanium(IV) butoxide as a catalyst. The intercalation and exfoliation of the clay layers in the resulting comp…
Abstract Thermal oxidative degradation of polypropylene impact copolymer has been studied with its fractions obtained using the temperature rising elution fractionation method. The fractions were analyzed using 13 C NMR, Fourier transform infrared and differential scanning calorimetry measurements, and the chemical st…
Holey cylinders: Porous anodic alumina has been prepared for the first time in a cylindrical form (see figure). Such a material offers the opportunity of preparing microscale needles with a nanoporous surface. The overall shape of the material can be controlled by selecting a particular shape for the precursor Al wire…
We report measurements of the in-plane electrical resistivity $\ensuremath{\rho}$ and thermal conductivity $\ensuremath{\kappa}$ of the intercalated graphite superconductor ${\mathrm{C}}_{6}\mathrm{Yb}$ down to temperatures as low as ${T}_{c}/100$. When a field is applied along the $c$ axis, the residual electronic li…
Abstract A series of sulfur‐containing linear polythioesters were synthesized from 4,4′‐biphenyldithiol (BPT) and bifunctionally aliphatic acyl dichlorides (ACs) by means of polycondensation. Polycondensations of BPT with azelaoyl chloride or sebacoyl chloride chosen as a model reaction system were investigated in sev…
Abstract Novel silicon carbide/polypyrrole (SiC/PPy) conducting composites were prepared using silicon carbide as inorganic substrate in the presence or absence of an anionic surfactant, dodecylbenzenesulfonic acid (DBSA). The surface modification of SiC particles was performed in aqueous solution containing the anion…
Abstract Miscibility and thermal and mechanical properties of poly(butylene terephthalate) (PBT) blends with poly(ε‐caprolactone) (PCL) were analyzed as a function of the molecular mass of PCL. It was found that the components are miscible when oligomeric PCL is blended with PBT, probably due to favorable interactions…
A detailed x-ray scattering and high-resolution ac calorimetric study has been carried out near the smectic-A to chiral smectic-C phase transition of liquid-crystal compounds 4-(2-methyl butyl) phenyl 4-n-octylbiphenyl-4-carboxylate (CE8) and p-( n-decyloxy) benzylidene-p-amino-(2-methylbutyl) cinnamate (DOBAMBC) conf…
We report a study of critical x-ray scattering from SrTiO3 near the antiferrodistortive structural phase transition at T(C) approximately 105 K. A line shape analysis of the thermal diffuse scattering results in the most precise experimental determination to date of the critical exponent gamma. The microscopic mechani…
Abstract It has been reported that the cure time t 90 , scorch time t 2 , and their difference ( t 90 − t 2 ) of Polybutadiene rubber (BR)/organoclay nanocomposites were much reduced over those of BR. This effect can be attributed to the ammonium groups in the organoclay. The possible formation of a Zn complex in whic…
The low-temperature electronic structure of the quarter-filled, quasi-one-dimensional (Q1D) system (DI-DCNQI)2Ag is revealed using synchrotron radiation x-ray diffraction. In spite of the interchain frustration in the twofold superstructure along the 1D chain, the body-centered tetragonal "charge ordering" structure,…
Abstract Decking and railing is the largest and fastest growing market for wood–plastic composites (WPCs). Despite WPC's advantages in comparison to lumber, its modulus and creep resistance need to be further improved for demanding structural applications. In this study, WPC deck boards were reinforced by the composit…
The swelling behavior of the polyelectrolyte complex films made from polyvinylamine (PVAm) or poly(vinylformamide- co -vinylamine) copolymers and carboxymethyl cellulose (CMC) was studied as a function of polymer composition, pH, and salt concentration. Swelling is determined by the balance between ionic cross-link de…
Abstract This research article focuses on investigating the effects of nanoclay particles on the flame retarding characteristics of wood–fiber/plastic composites (WPC) using ASTM D635. The processing aspects of nanocomposites with WPC are presented. The processing techniques for controlling the degree of exfoliation a…
Thermoresponsive hyperbranched polymers were prepared and their lower critical solution temperatures in aqueous media were sensitive to the change of molecular weight, degree of substitution of IBAm groups, and acidity of the solution.
Reaction of lithium tetrachloromanganate(II) with N-n-butyldiethanolamine H2L3 (3) in the presence of LiH leads to the formation of wheel-shaped, mixed-valent heptanuclear, neutral complex {MnII subset[MnII2MnIII4Cl6(L3)6]} (4). The manganese wheel crystallizes in the triclinic space group P as 4.2CHCl3 or 4.3THF when…
Two Zn-Pc-peptide conjugates bearing either a short linker or a long PEG-linker between the macrocycle and a bifunctional peptide containing the nucleoplasmin and HIV-1 Tat 48-60 sequences have been synthesized in order to increase the Pc cell-targeting ability and to evaluate the effect of the linker. The presence of…