Materials Literature
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Abstract High‐density polyethylene grafted isotactic polypropylene (PP‐ g ‐HDPE) was prepared by the imidization reaction between maleic anhydride grafted polyethylene and amine‐grafted polypropylene in a xylene solution. The branch density was adjusted by changes in the molar ratio between maleic anhydride and primar…
ABSTRACT Shiitake (Lentinula edodes [Berk.] Pegler) stipe was used to substitute wheat flour to make bread. Bread quality including specific volume, color and sensory evaluation, and taste components including proximate composition, soluble sugars, free amino acids and 5′-nucleotides in shiitake stipe bread were analy…
We describe a soft thin film which selectively adsorbs DNA but averts the non-specific binding of proteins. Indium tin oxide (ITO) substrates were surface-modified with a poly(L-lysine)-g-poly(ethylene glycol) (PLL-PEG) film which carries an outer protein-repelling PEG layer and an underlying positively charged PLL la…
Abstract Polycarbonate nanocomposites were prepared by melt processing from two surface‐modified montmorillonite organoclays. The intercalation spacing and degree of the dispersion were characterized with wide‐angle X‐ray diffraction and transmission electron microscopy, respectively. The polycarbonate nancomposites s…
Abstract Uniform 3D hierarchical CuO butterfly‐like architectures were fabricated by a surfactant‐assisted hydrothermal oriented attachment route. This route included the formation of CuO butterfly‐like architectures in a solution of cupric chloride (CuCl 2 · 2H 2 O) and sodium hydroxide (NaOH) at 100 °C for 15 h by u…
We performed powder neutron scattering experiments on spinel ferrimagnets A Cr 2 O 4 with magnetic and Jahn–Teller A 2+ ions ( A = Fe, Ni, Cu). In both FeCr 2 O 4 and NiCr 2 O 4 , although geometric frustration had been expected to vanish so far, resonance-like magnetic excitation modes were discovered around Q ≃1.4 Å…
Liquid foams were recognized early to be porous materials, as liquid flowed between the gas bubbles. Drainage theories have been established, and foam permeability has been modeled from the microscopic description of the equivalent pores geometry, emphasizing similarities with their solid counterparts. But to what ext…
Abstract A study of converting chemically modified wood into thermoplastic materials was undertaken to develop a new technology platform for the effective utilization of wood‐based lignocellulosic materials. Highly substituted benzoylated spruce thermomechanical pulp (TMP) and lauroylated spruce TMP were used as compo…
Porous scaffolds play an integral role in many tissue-engineering approaches, and the ability to improve vascularization, without eliciting an excessive inflammatory response, would constitute an important step towards achieving long-term healing and function of devices made from these materials. After having previous…
The new conjugated organometallic polymer (-spacer-C[triple bond]C-Pt(PBu3)2-C[triple bond]C-)n (3; spacer = para-bis(diphenyl(tetramethyl)quinone diimine) and the cyclic mononuclear model complex, spacer'-C[triple bond]C-Pt(PEt3)2-C[triple bond]C x CuCl (4; spacer' = ortho-diphenyl-2,3,5,6-tetramethyl-1,4-benzoquinon…
A novel host molecule H(2)1 bearing a dibenzo[24]-crown-8 moiety and a dipicolinic acid group was synthesized, and its Tb(3+) complex displayed a satisfactory luminescent emission. The tris[2]pseudorotaxane formed from [Tb.1(3)](3-) and ferrocene derivative 2 reveals excellent reversible luminescent lanthanide behavio…
The hemocompatibility of silk fibroin (SF) was improved with ferulic acid (FA) by graft polymerization. Ferulic acid is an active ingredient of many Chinese herbal medicines, such as Chuanxiong (Rhizoma ligustici wallichii), Danggui (Angelica sinensis) and Awei (Asafoetida giantfennel), which have been used to treat c…
Abstract The dispersion of clay in a polymer matrix is influenced by two factors: the choice of organic treatment for the clay and the processing or mixing method. Maximum benefits are achieved when the platelets are well dispersed or exfoliated. Exfoliated nanocomposites are formed when the individual clay layers bre…
Because of their unique structure and composition, single-wall carbon nanotubes (SWNTs) are at the interface between molecules and crystalline solids. They also present properties that are ideal for making lightweight, inexpensive, and flexible electronics. The raw material is composed of a heterogeneous mixture of SW…
We demonstrate local crystal structure analysis based on annular dark-field (ADF) imaging in scanning transmission electron microscopy (STEM). Using a stabilized STEM instrument and customized software, we first realize high accuracy of elemental discrimination and atom-position determination with a 10-pm-order accura…
Agar, a highly hydrophilic polymer, has a special gel property and favorable biocompatibility, but moderate intension strength in an aqueous condition and a low degradation rate. In order to tailor both properties of mechanical intension and degradation, type I collagen was composited with agar in a certain ratio by d…
The assembly of single-walled carbon nanotubes (SWCNTs) using the AC dielectrophoresis technique is studied theoretically. It is found that the comb electrode bears better position control of SWCNTs compared to the parallel electrode. In the assembly, when some SWCNTs bridge the electrode first, they can greatly alter…
Abstract The surface of waste ground rubber tire (WGRT) powder has been modified with by allylamine via an ultraviolet (UV) treatment. The degree of grafting of the modified‐WRGT are confirmed by the Fourier Transform Infrared spectroscopy (FTIR), scanning electron microscopy, energy dispersive X‐ray analysis, thermog…
phosphors were prepared by a Pechini sol-gel process. X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), diffuse reflectance, photoluminescence, cathodoluminescence spectra, as well as lifetimes were utilized to characterize the synthesized phosphors. XRD results reveal that the sample begi…
Nearly all ferromagnetic transitions have been considered to be continuous or second order, and the most typical examples are the ferromagnetic transitions in Ni, Fe, Co, and ${\text{CoFe}}_{2}{\text{O}}_{4}$. However, by precise measurement with electrical resistivity or impedance and differential scanning calorimetr…