Materials Literature
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Abstract Reactive extrusion and solid acid catalysis technologies were adopted in the pentaerythritol–melamine phosphate (PER‐MP) reaction to synthesize intumescent flame retardant, melamine salt of pentaerythritol phosphate (MPP), which was applied in flame retardant polypropylene (PP). This environment‐friendly synt…
A new bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF)-based salt with a ferrocenyl moiety, alpha' ''-(BEDT-TTF)(4)(Fe(C(5)H(4)SO(3))(2)).6H(2)O, has been prepared. The ferrocenyl part of this salt is neutral and diamagnetic, but the magnetic susceptibility is well modeled by a Curie-Weiss law with C = 0.142 emu.K.mol…
Abstract A modification of the polyol method has been shown to result in improved efficiency and enhanced kinetics for the synthesis of silver nanocrystals when compared with the traditional polyol method. The Ag nanocrystals produced were characterized using X‐ray diffraction and transmission electron microscopy. Acc…
Abstract In this research, the effect of crystalline fraction of polypropylene (PP) on cell nucleation behavior was overcome by an introduction of solvent‐plasticized step to the microcellular foaming in a solid‐state batch‐foaming process. Utilizing the plasticization performance of the solvent facilitated the PP to…
We present an elementary proof concerning reciprocal transmittances and reflectances. The proof is direct, simple, and valid for the diverse objects that can be absorptive and induce diffraction and scattering, as long as the objects respond linearly and locally to electromagnetic waves. The proof enables students who…
Abstract This article describes the preparation of multicolored reflective electrochromic displays (R‐ECDs) through the control of the substituents on viologen molecules. Cyanophenyl, salicylic, and alkyl groups were introduced onto 4,4′‐bipyridine. The synthesized viologen moieties were reacted with methyl chloride f…
The decawolframate anion reduced by two electrons, W10O326-, is diamagnetic, and its two "extra" electrons delocalize mainly among its eight equatorial wolfram sites. In this work, we combine a phenomenological Hamiltonian with first-principles calculations to explain the origin of these properties. Through ab initio…
Drug resistance is a major cause of treatment failure in cancer chemotherapy, including that with the extensively prescribed antimetabolite, 5-fluorouracil (5-FU). In this study, we tried to reverse 5-FU resistance by using a double-punch strategy: combining 5-FU with a biochemical modulator to improve its tumoural ac…
Independent control of density and diameter of carbon nanotubes (CNT) is achieved by catalytic growth from iron nanoparticles pre-defined by inert gas condensation. This two-stage process offers the opportunity to investigate the particles prior to the CNT growth, thereby providing deeper insight into the growth mecha…
Abstract A numerical method based on an integro‐differential formulation is proposed for solving a one‐dimensional moving boundary Stefan problem involving heat conduction in a solid with phase change. Some specific test problems are solved using the proposed method. The numerical results obtained indicate that it can…
Activity experiments using GC analysis of reactor effluent have been combined with in situ IR spectroscopy to elucidate the reaction steps in the destructive adsorption of CHCl3, CH2Cl2, and CH3Cl over LaOCl. The IR results show that during reaction, LaOCl is covered with carbonate, formate, and methoxy groups. The re…
We have performed a systematic analysis of the numerical errors contained in the databases used in cluster expansions of multicomponent alloys. Our results underscore the importance of numerical noise in the determination of the effective cluster interactions and in the expansion determination. The relevance of the si…
Continuum based models are presented here for certain boron nitride and carbon nanostructures. In particular, certain fullerene interactions, C(60)-C(60), B(36)N(36)-B(36)N(36) and C(60)-B(36)N(36), and fullerene-nanotube oscillator interactions, C(60)-boron nitride nanotube, C(60)-carbon nanotube, B(36)N(36)-boron ni…
Highly ordered bimodal mesoporous phosphosilicate monoliths were synthesized in a facile one-step sol−gel route, whose mesostructures were tuned via optimizing the addition time of trimethxyl phosphate. After the removal of surfactant, the bulk monoliths are glassy and present vitreous luster and fibrous patterns. The…
We investigate low-energy electronic states and heat capacity of graphene strips. The density of states of graphene is obtained by diagonalizing a lattice Hamiltonian for graphene strips with zigzag and armchair edges, respectively. The modes localized at strip edges in zigzag geometry reveal a peculiar density of sta…
Abstract BACKROUND: Polyimide films coated on copper are a potential new substrate for fabricating printed circuit boards; however, adhesion between the copper and polyimide films is often poor. The relations between residual stress and adhesion strength according to the development of molecular orientation of polyimi…
Hybrid nanostructure Ag−Zn 0.9 Co 0.1 O was prepared via a solution chemistry method. Part of the electrons from the Ag tip was introduced and accumulated in Zn 0.9 Co 0.1 O nanorods, shifting the Fermi level to induce a robust room-temperature ferromagnetism.
Surface structural characterisation of three different starch-based blends (with poly[ethylene-co-(vinyl alcohol)], cellulose acetate and polycaprolactone) was carried out. The results show that there is a difference between the bulk and the surface composition of all studied blends. Two different hypotheses were inve…
A theoretical analysis of eigenpolarizations and eigenvalues pertaining to the Jones matrices of dichroic, birefringent, and degenerate polarization elements is presented. The analysis is carried out employing a general model of a polarization element. Expressions for the corresponding polarization elements are derive…
Abstract This paper reports a method of patterning semiconductor nanocrystals (NCs) in a polymer film. By combining lithographic concept with polymerization‐induced phase separation in a NC‐monomer mixture, we produced topographic and lateral compositional patterns in NC‐polymer films. The quality of the patterns was…