Materials Literature
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In this paper, a new method was used to prepare flame retardant thermoplastic polyurethane elastomer (TPU). Nickel phosphate with Ni(OH)(PO 4 ) 2– layers, Na(H 3 O) 2 {Ni 4 (OH) 4 (HPO 4 ) 3 (H 2 PO 4 )} (NaNiP), was prepared by a hydrothermal method, and it was added to the TPU and intumescent flame retardant (IFR) s…
Light transmission and surface-enhanced Raman scattering (SERS) of quasi-3D plasmonic nanostructure arrays with deep (820 nm) and shallow (80 nm) Fabry-Pérot (FP) nanocavities were investigated experimentally and by means of 3D-finite-difference time-domain (3D-FDTD) simulations. The arrays with deep FP nanocavites ex…
Shortcomings of the classical approach in describing magnetization processes in grain-oriented transformer steel is analyzed. A noniterative method of accounting for hysteresis and dynamic properties of transformer core is proposed. Fitting the model to catalog data is described. The method is illustrated by calculati…
A hitherto unknown phase of sodium titanate, NaTi(3)O(6)(OH)·2H(2)O, was identified as the intermediate species in the synthesis of TiO(2) nanorods. This new phase, prepared as nanorods, was investigated by electron diffraction, X-ray powder diffraction, thermogravimetric analysis and high-resolution transmission elec…
In this study, blending of poly (vinyl alcohol) (PVA) and sago pith waste (SPW) was prepared by a one-step melt extrusion. The physico-mechanical, Fourier transform-infrared (FT-IR), moisture sorption, rheological, and thermal characterization were conducted. Incorporation of PVA in SPW improved the tensile modulus, w…
Mixed phases of metastable cubic and stable hexagonal manganese assisted CdS nanoparticles were synthesized by a colloidal route. These phases were quantified by the Short and Steward method of X-ray diffraction and differential scanning calorimetry analysis. The photoluminescence (PL) emission observed around ∼550 nm…
In this work, an amphiphilic diblock copolymer (PEG(43)-b-PSDTE(29)) bearing photochromic dithienylethene (DTE) pendants is synthesized by reversible addition fragmentation chain transfer radical polymerization. The diblock copolymer was characterized by spectroscopic methods and gel permeation chromatography. The ana…
Here, a method is described for easily building three-carbon nanotube junctions. It allows the geometry to be found and bond connectivity of C(3) symmetric nanotube junctions to be established. Such junctions may present a variable degree of pyramidalization and are composed of three identical carbon nanotubes with ar…
Polyelectrolyte layer-by-layer (LbL) nanofilms are interesting polymeric structures, built by alternating adsorption of positively and negatively charged polyelectrolytes. They consist of multilayer sheets with nanometric overall thickness, and they can be used as supports and surface coatings for in vitro and in vivo…
Monodisperse high-molecular weight macrothiols were synthesized and efficiently coupled to various allylic precursors via thiol–ene click chemistry. A comprehensive dendritic library was obtained in good yields and short reaction times including conventional dendrimers as well as more sophisticated structures such as…
Abstract A method for the growth of films consisting of Nanoparticles (NP) of Ag and Au is presented. Nanostructured films were obtained by means of nanosecond pulsed laser ablation of a metallic target in presence of a controlled Ar atmosphere. The morphology of these films from island structures to isolated nanopart…
A new series of degradable and water-swellable cross-linked PEG phosphoester polymers (CPPs) based on a facile cross-linked reaction between diphosphoesters of polyethylene glycol (P-PEG-P) and diglycidyl ether of polyethylene glycol (E-PEG-E) has been prepared and characterized. The molecular weights and ratios of th…
Abstract Metal clusters stabilized by a surface ligand shell represent an interesting intermediate state of matter between molecular metal–ligand complexes and bulk metal. Such “metalloid” clusters are characterized by the balance between metal–metal bonds in the core and metal–ligand bonds at the exterior of the clus…
Abstract Unstabilized poly(ether block amide) (PEBA, PEBAX) of the type used in angioplasty balloons was aged at temperatures of 18–85°C for periods of up to 313 days. Since PEBA is used in safety critical applications, understanding the effects and underlying mechanisms of ageing and the validity of accelerated agein…
Abstract A new Gd 26 cluster based 3D framework, {[Gd 26 (μ 6 ‐CO 3 ) 9 (NIC) 32 (μ 3 ‐OH) 26 ](NO 3 ) 2 · 3(H 2 O)} n ( 1 ) (NIC = nicotinato anion) has been prepared through hydrothermal synthesis and characterised by single‐crystal X‐ray diffraction. The Gd 26 clusters are formed by the combination of five distorte…
Polyrotaxanes consisting of α-cyclodextrin and poly(ethylene glycol) are versatile building blocks for the construction and controlled degradation of multilayers. Degradation is based on “unlocking” the α-cyclodextrins by disulfide cleavage of the polyrotaxane capping groups. This disrupts the multivalent intermolecul…
Achiral pyrene oligomers α show remarkable amplification of chirality (see circular dichroism spectra) in the presence of minute quantities of a chiral inductor χ. Spectroscopy and electron microscopy data support a model in which pyrene oligomers form helical, supramolecular polymers by interstrand stacking interacti…
This work reports an unexpected oxidation behavior of Cu nanoparticles embedded in porous Al(2)O(3) confinements that are produced by annealing alucone (an organic-inorganic hybrid material) deposited by molecular layer deposition. An oxidation of such encapsulated Cu nanoparticles by annealing in air produces Cu oxid…
The longitudinal piezoelectric coefficient ${d}_{33}^{*}$ of a PZT-like ferroelectric is computed in the full composition-temperature parameter space using sets of parameters that control the position of the tricritical points and the degree of tilting of the morphotropic phase boundary separating the ferroelectric rh…
The boric acid flux reactions of uranyl nitrate with sodium, potassium, rubidium, or thallium fluoride result in the formation of a novel family of uranyl(VI) fluoroborate materials. These compounds are Na[(UO 2 )B 5 O 8 (OH)F]·H 2 O ( NaUBOF-1 ), K[(UO 2 )B 5 O 8 (OH)F] ( KUBOF-1 ), K 11 [(UO 2 ) 6 B 24 O 36 F 22 )](…