Materials Literature
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A stable aqueous dispersion of hybrid silica nanocapsules encapsulating fluorescent conjugated polymers have been successfully synthesized via a facile and highly benign approach of templated condensation of silica precursors at the core-corona interface of PEO-based block copolymer micelles.
Two topologically equivalent triangular POM aggregates based upon the Keggin () and Dawson () cluster species, with distinctive double {W-O-M} intra-molecular linkages involving Mn(III) and Co(III) ions are presented; both these compounds demonstrate electrocatalytic activity.
We previously reported that poly(2-methoxyethyl acrylate) (PMEA), which has excellent blood compatibility, contains a large amount of freezing bound water. In order to confirm the role of freezing bound water in determining blood compatibility, poly(tetrahydrofurfuryl acrylate) (PTHFA) was newly synthesized and the th…
A stable monoprotonated porphyrin (porphyrin monoacid) was obtained by reaction of saddle-distorted dodecaphenylporphyrin with anthracene sulfonic acids and the crystal structures of the supramolecular assemblies were determined.
Silkworm-derived fibroin, which constitutes the core of the silk filament, is an attractive protein-polymer for biomedical applications. Fibroin can also be processed into a variety of 2-D and 3-D formats to match morphological and structural features to specific applications. The focus of the present research was to…
Pd membranes of excellent stability and flux were prepared with multi-legged anchors by electroless plating of Pd on a porous support modified by a zeolite barrier layer containing Pd seeds; these membranes provide stable phenol production by direct hydroxylation of benzene.
Surface properties of thermally stable phosphonium-modified montmorillonite were investigated at both room temperature and 220°C. These properties were compared with those of pristine and ammonium-modified montmorillonite. Surface properties at room temperature were calculated from contact angles measured using sessil…
Abstract—This paper presents a class of ultra-thin metamaterial absorbers, which consists of periodic microstrip lines on top of a planar lossy substrate backed by a conducting metallic plate. A highly efficient full-wave analysis method was developed to solve the electromagnetic response of the absorbers. The influen…
Highly ordered body cubic (Im-3m) mesoporous phenol-formaldehyde resins (OMR) monoliths were successfully synthesized at high temperatures (200–260 °C) by the assembly of copolymer surfactant (F127) with preformed resol. The preformed resol was obtained from heating a mixture of phenol and formaldehyde at 70 °C. These…
Structure isomers of the Au(10)(-) cluster and their chemical reactivity with O(2) are studied using photoelectron spectroscopy under different experimental conditions. In addition to the global minimum triangular D(3h) structure, at least three low-lying isomers (X', X'', and X''') are observed distinctly using argon…
Reactions of Ln(III) acetate (Ln = Pr and Nd) and a polydentate Schiff-base in a mixture of methanol and acetonitrile resulted in the unprecedented assembly of novel Ln(10) aggregates containing two Ln(5) pentagons templated by mu(5)-CO(3)(2-), introduced via spontaneous fixation of atmospheric carbon dioxide. Magneti…
Lavender oil is extracted from lavender herb, collected in the east region of Morocco (Tafoughalt) and tested as corrosion inhibitor for mild steel in 1 M HCl. The inhibiting effect was studied by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. Polarisat…
With the Zn–Schiff-base [ZnL11(Py)] or [ZnL22(Py)] from the simple Salen-type Schiff-base ligand H22L11 or H22L22 (H22L11: N,N′-bis(salicylidene)ethylene-1,2-diamine; H22L22: N,N′-bis(salicylidene)phenylene-1,2-diamine) without the outer O2O2 portion as the precursor, two series of eight trinuclear Zn2Ln arrayed compl…
The ionic liquid compositions (ILC) composed of the Keggin-type phosphotungstate-functionalized ionic liquid of [Dopy]3[PW12O40] (1) and the amphipathic IL mixture of [Bpy]BF4 and [Dopy]BF4, were constructed as an effective catalytic system and ideal reaction medium for alkene epoxidation by aqueous H2O2, in which the…
Three-dimensional SiC ceramic microstructures with near-zero shrinkage were fabricated from a simple inorganic polymer mixture by inducing dual photocuring routes to produce highly dense polymer features by stereolithography and subsequent pyrolysis at 600 degrees C.
Particulate filled polymer composites are becoming attractive because of their wide applications and low cost. In this study the effects of mica with varying concentration on the mechanical, thermal, electrical, rheological and morphological properties of polyester thermoplastic elastomer (Hytrel ) was investigated. C…
Parameters, such as crystallization temperature, pH, P123 content and aluminium source in the synthesis of mesoporous aluminas using the cation–anion double hydrolysis method (P. Bai, P. Wu, G. Zhao, Z. Yan and X. S. Zhao, J. Mater. Chem., 2008, 18, 74) were examined. With the assistance of characterization techniques…
We have performed an angle-resolved photoemission spectroscopy (ARPES) study of the undoped and electron-doped iron pnictides BaFe 2- x Co x As 2 (Ba122) ( x = 0, 0.14) and studied the Fermi surfaces (FSs) and band dispersions near the Fermi level. The FS sheets we observed are consistent with the shrinkage of the hol…
Two-dimensional correlation infrared spectroscopy (2DIR) and a newly developed perturbation correlation moving window (PCMW) technique was employed to study the precise supramolecular self-assembly nature of poly[di(butyl)vinyl terephthalate] (PDBVT), a novel thermotropic liquid crystalline polymer which can self-asse…
Local delivery of antiproliferative drugs encapsulated in biodegradable nanoparticles has shown promise as an experimental strategy for preventing vascular restenosis development. The general aim of this work was to develop polymeric nanoparticle carriers with bioadhesive properties, and to evaluate its adjuvant poten…