Materials Literature
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Ring-opening polymerization (ROP) studies of cyclic acetals, ethers, esters, and esters of phosphoric acids developed in Centre of Molecular and Macromolecular Studies in Łódź is concisely reviewed. Main attention is paid to results of a more general importance for polymer science, as seen from a personal perspective…
The increasing problem of atmospheric pollution by NO x has resulted in stricter regulations on their emissions. NO x storage/reduction (NSR) is considered as efficient catalytic technology to abate lean-burn NO x . A wide variety of catalysts have been extensively examined for this purpose. The use of metal oxides, h…
Abstract Nanocomposites of polycarbonate/acrylonitrile‐butadiene‐styrene (PC/ABS) with multiwall carbon nanotubes (MWCNT) prepared by masterbatch dilution are investigated in this work. Melt compounding with twin screw extruder is followed by complete characterization of morphology, rheological‐, mechanical‐, and ther…
We propose novel pseudocapacitors that can store energy related to the partial entropy change associated with proton concentration variations following neutralization reactions. In this situation, it is possible to obtain electrochemical energy after the complete charge/discharge cycle conducted in electrolytic soluti…
Two novel series of 'Al-kanes' (CnAl2n+2) and 'Al-kenes' (CnAl2n) have been studied theoretically in order to shed light on their structure, stability and properties. Density functional calculations suggest that the structures tend to be dictated by the constituent aluminium atoms, rather than the carbon backbone. Thi…
Optically active epoxides are known as versatile chiral building blocks in organic synthesis, and many efforts have been directed toward developing asymmetric epoxidation (AE) reaction of olefins. The first major breakthrough in AE using synthetic catalysts was realized by Katsuki and Sharpless in 1980, they achieved…
Abstract A facile and low cost method for the synthesis of self‐assembled nanoparticles (NPs) with minimal size variation and chemical waste by using reactive inkjet printing was developed. Gold NPs with diameters as small as (8±2) nm can be made at low temperature (120 °C). The size of the resulting NPs can be readil…
The electronic, structural, vibrational and elastic properties of PaN have been studied at both ambient and high pressures, using first principles methods with several commonly used parameterizations of the exchange-correlation energy. The generalized gradient approximation (GGA) reproduces the ground state properties…
We used angle-resolved photoemission spectroscopy to investigate the electronic structure and the Fermi surface of EuFe2As2, EuFe2As1.4P0.6 and EuFe2P2. We observed doubled core level peaks associated with the pnictide atoms. Using K atoms evaporated at the surface to affect the surface quality, we show that one compo…
The microstructural mechanisms which dictate the two-way shape-memory effect in indentation-induced NiTi surfaces is currently unknown. We create surfaces capable of thermally induced switchable topography, and characterize their behavior via white-light interferometry, X-ray and electron back scatter diffraction, and…
Hybrid solar cells have the potential to be efficient solar-energy-harvesting devices that can combine the benefits of solution-processable organic materials and the extended absorption offered by inorganic materials. In this work, an understanding of the factors limiting the performance of hybrid solar cells is explo…
Thermally stable polyimide/titanium dioxide (PI/TiO 2 ) hybrid nanocomposite films have been successfully synthesized through the in situ formation of TiO 2 within a PI matrix via sol–gel process. Poly(amic acid) (PAA) solutions are prepared from bis(4-aminophenoxy)phenyl triptycene and 3,3′,4,4′-benzophenone tetracar…
Thermogravimetry (TG), differential thermal analysis (DTA), differential scanning calorimetry (DSC) and Fourier transformed infrared spectroscopy (IR) were used to study amoxicillin trihydrate. The thermal behavior and physical properties of the studied compound were established and coupled TG-IR analyses were used to…
Multilayer film stacks of ZnS and CuxS (x ∼ 2) were made via atomic layer deposition. The precursors were bis(2,2,6,6-tetramethyl-3,5-heptanedionato)zinc, bis(2,2,6,6-tetramethyl-3,5-heptanedionato)copper, and H2S generated in situ for sulfur. Samples were deposited at 200 °C, in layers ranging from approximately 2 to…
A colourless single crystal of Li3Cs2B5O10 with dimensions of 20 × 15 × 4 mm3 has been grown. It was obtained from the stoichiometric melt using the top-seeded solution growth method in air. The infrared spectroscopy data, density and hardness of the Li3Cs2B5O10 crystal were measured. The measured density is in agreem…
The interaction of three cationic poly {9,9-bis[N,N-(trimethylammonium)hexyl]fluorene-co-1,4-phenylene} polymers with average chain lengths of ∼6, 12, and 100 repeat units (PFP-NR36(I),12(Br),100(Br)) with both double and single stranded, short and long, DNA and DNA bases have been studied by steady state and time-res…
Silver and its compounds have been used for centuries for e.g. water storage, burn wounds or as eye ointment. Almost forgotten after the discovery of antibiotics, silver chemistry has had a revival over the past years as a means to combat multi-resistant bacteria. Although the details of its mechanism of action are st…
Aluminum nitride (AlN) microparticles treated by silane coupling reagent of γ-glycidoxy propyl trimethoxy silane (KH-560) are employed to fabricate AlN/epoxy (AlN/EP) composites. Initially, both the flexural and impact strength of the AlN/EP composites increased, but later decreased with excessive addition of AlN. The…
In this article we interpret the mechanical properties of icosahedral quasicrystals with the dislocation theory. After having defined the concept of dislocation in a periodic crystal, we extend this notion to quasicrystals in the 6-dimensional space. We show that perfect dislocations and imperfect dislocations trailin…
Pyrrolidinedithiocarbamate (Pyr), piperidinedithiocarbamate (Pip), morpholinedithiocarbamate (Mor), diethanolaminedithiocarbamate (DEDC) and hexamethylenedithiocarbamate (Hex) sodium and potassium salts, were synthesized, characterized by IR, elemental analysis, 1 H and 13 C NMR and their thermal behaviors were invest…