Materials Literature
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Abstract Single crystals of a novel nonlinear optical organometallic compound CLTC, ([(18C6)Li][Cd(SCN) 3 ]), were grown from aqueous solutions via evaporation technique and characterized by IR spectroscopy, thermal gravimetric analysis and X‐ray single‐crystal diffraction. By X‐ray single‐crystal structural analysis…
In this paper, we propose novel cleaning equipment using a waveguide mode, which we call the Megatube. By using the waveguide, it is possible to supply ultrasonic waves at a distance from the sound source without spreading loss and generate cavitation by controlling the input power and dissolved gas concentration. The…
N-(2-hydroxyethyl)formamide (HF) was synthesized efficiently and used as a new plasticizer for corn starch to prepare flexible starch film. The hydrogen bond interaction between HF and starch was proved by Fourier-Transform Infrared (FT-IR). By scanning electron microscope (SEM), starch granules were completely disrup…
Thermoplastic polyurethanes (TPU) (based on ether and ester polyols) were blended with nonpolar material of PP. Nanoclay was used to reduce the surface energy of the TPU hard segments and makes them more compatible with the non-polar PP. More compatible blends have been obtained by using MA-g-PP as the compatibiliser.…
Abstract The crystal structure of NH 4 VO 3 was refined by the geometry optimization done by total energy minimization in solid state using DFT/plane waves approach. The lattice parameters were derived by the Le Bail technique from the low temperature X‐ray (40‐293 K) and synchrotron (100‐293 K) powder diffraction dat…
The structure of the trimeric adenylate kinase from the Archaebacteria Methanococcus mariplaludis (AK(MAR)) has been solved to 2.5-A resolution and the temperature dependent stability and kinetics of the enzyme measured. The K(M) and V(max) of AK(MAR) exhibit only modest temperature dependence from 30 degrees -60 degr…
This paper describes a simple method for preparing well‐aligned ZnO nanorod arrays in a more tunable fashion, which enables the synthesis of nanorods directly in various patterns and the easy control of the array density. This method is based on a combination of the microcontact printing process for patterning and a s…
Abstract A three‐layer laminate film was developed with the following structure: polyethylene terephthalate (PET)/fish gelatin (FG)–nanoclay composite/low‐density polyethylene (LDPE). The FG–nanoclay composite material functioned as the oxygen barrier layer and demonstrated comparable oxygen barrier properties when co…
Abstract Styrene‐(maleic anhydride) copolymer (SMA) compatibilized blends of acrylonitrile‐butadiene rubber (ABS) and polyamide 6 (PA6) with a variety of compositions and compatibilizer levels were prepared at various screw speeds in a corotating twin screw extruder. A Box–Behnken model for three variables, with three…
Abstract The properties of segmented‐copolymer‐based H‐bonding and non‐H‐bonding crystallisable segments and poly(tetramethylene oxide) segments were studied. The crystallisable segments were monodisperse in length and the non‐hydrogen‐bonding segments were made of tetraamidepiperazineterephthalamide (TPTPT). The poly…
The effects of solvent polarity on the geometry and static first hyperpolarizability of one- and two-dimensional charge transfer molecules based on para-nitroaniline (PNA) and 1,3-diamino-4,6-dinitrobenzene (DADB) were studied using a polarizable continuum model (PCM) at the B3LYP/6-31+G(d,p) level of theory. The incl…
Abstract Pyrrole/(vinyl acetate) copolymer was prepared in aqueous and aqueous/nonaqueous media by the copolymerization of vinyl acetate and pyrrole using FeCl 3 /(NH 4 ) 2 S 2 O 8 and FeCl 3 /(benzoyl peroxide) as oxidants in the presence of various surfactants such as sodium dodecylbenzenesulfonate, poly(ethylene gl…
Abstract Ethylene oxide catalyst is a high metal loading catalyst, in which silver crystals is impregnated on α‐Al 2 O 3 support. In this type of catalyst, metal dispersion plays an important role on catalyst selectivity for desired products. In this work, silver nitrate and silver oxide together with oxalic and lacti…
We perform an analysis of the experimentally known temperature dependence of the staggered magnetization in the antiferromagnetic phase. This analysis allows us to put an upper limit on the unknown value of the spin-wave velocity along the stripes of equal spin direction (spin stripes). The velocity is about ten times…
This study examined the miscibility, mechanical and thermal properties of melt-mixed blends of PTT(poly(trimethylene terephthalate)) with PP(isotatic polypropylene). DMA and SEM results indicated that the PTT/PP blends are immiscible. Revealed from TGA analyses, the blends with a higher PP content showed a higher degr…
Diblock copolymers blended with homopolymer may self-assemble into spherical, cylindrical, or lamellar aggregates. Transitions between these structures may be driven by varying the homopolymer diblock molecular weight or composition. Using self-consistent field theory (SCFT), we reproduce these effects. Our results ar…
Abstract Isotactic polypropylene‐vapor grown carbon nanofiber composites containing various fractions of carbon nanofibers, ranging from 0 to 20 wt %, have been prepared. Raman spectroscopy was used to analyze the effect of the dispersion of carbon nanofibers within polypropylene and the interactions between carbon na…
The effect of hydrogen peroxide and frequency on the degradation of phenol was investigated in this study. The concentrations of phenol and hydrogen peroxide were 0.05 and 0.0018 mM, respectively. When a high frequency of sonication (1 MHz) was irradiated to a phenol solution, the efficiency of decomposition of phenol…
The spectrum of multi-bubble sonoluminescence (MBSL) from alkali-metal aqueous solutions consists of continuum emission and line emission from alkali-metal atoms. We performed spatiotemporal separation of the two types of emission to investigate origin of the emissions. Images of MBSL at 137 kHz from NaCl solution tak…
The translocation of folded proteins via the twin-arginine translocation (Tat) pathway is regulated to prevent the futile export of inactive substrate. DmsD is part of a class of cytoplasmic chaperones that play a role in preventing certain redox proteins from premature transport. DmsD from Escherichia coli has been c…