Materials Literature
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New-type two lanthanide complexes based on a germanotungstate ligand, Na12[Ln4(α(1,4)-GeW10O38)2 (H2O)6]·nH2O (Ln = Dy (1); Er (2)) which contain four trivalent lanthanide ions and two [α(1,4)-GeW10O38]12− units, have been synthesized and structurally characterised, and their magnetic properties have also been investi…
A straightforward Peterson olefination reaction between either [{(Me(2)PhSi)(3)C}Li(THF)] or in situ-generated [(Me(3)Si)(2){Ph(2)P(BH(3))}CLi(THF)(n)] and paraformaldehyde gives the alkenes (Me(2)PhSi)(2)C[double bond, length as m-dash]CH(2) () and (Me(3)Si){Ph(2)P(BH(3))}C[double bond, length as m-dash]CH(2) (), res…
脂肪族ポリエステル系繊維と天然繊維について，鳥取県沖深度 2000 m の海底及び富山湾深層水（深度 321 m）中で浸漬試験を行い，これらの繊維の深海中における生分解性について評価した。約 1 年間浸漬した結果，すべての繊維で強度低下が確認され，繊維の表面には微生物による分解痕が多数確認された。これらの結果から，深海でも繊維が分解されることが確認された。さらに，深層水中から Pseudomonas 属に属する 2 株の PCL 分解微生物を単離した。単離した PCL 分解微生物は低温下でも増殖し，PCL 分解活性を示した。
A non-covalent approach to debundle single wall carbon nanotubes using a biocompatible chitosan-derivative, namely N-octyl-O-sulfate chitosan (NOSC), was investigated. The resulting stable dispersions were characterised by Raman spectroscopy, UV-Vis spectroscopy, atomic force microscopy (AFM), transmission electron mi…
Biocompatible poly(propylene‐co‐butylene succinate) (PPBSu) copolyesters, containing up to 50 mol% butylene succinate units, were synthesized by the two‐stage melt polycondensation method (esterification and polycondensation). The copolymers were fully characterized and biocompatibility studies were also performed. Th…
Deformation twinning, which is extremely difficult to produce in face-centered cubic (FCC) crystals with medium to high stacking fault energy (SFE), was observed in pure copper single crystals with an appropriate crystallographic orientation subjected to equal-channel angular pressing (ECAP) for one pass at room tempe…
The applicability of IR spectroscopy in studies of the structural characteristics of the ferrite spinel phase was shown for Zn 0.5 Mn 0.5 Fe 2 O 4 samples prepared by the pyrolysis of aerosols of aqueous solutions of metal nitrates. The IR spectra of synthesized (ZnMn)Fe 2 O 4 ferrites, Fe 2 O 3 , ZnO, MnO, and Mn 2 O…
We have studied the fluorescence and Raman emission of the anthraquinone drug emodin immobilized molecules on nanostructured silver surfaces, prepared through two different methods. Two different pHs (pH = 10 and pH = 6) have been used. The dye aggregation favors SEF at pH = 6, whereas quenching of fluorescence is obs…
Carbon nanotubes (CNTs) have shown great potential for the reinforcement of polymers or fiber-reinforced composites. In this study, mechanical properties of multi-walled carbon nanotube (MWNT)-filled plain-weave glass/epoxy composites intended for use in radar absorbing structures were evaluated with regard to filler…
Zeolites possess excellent ion exchange capabilities, so that it is easy to synthesize Ag-zeolite (AgxAlxSi1−xO2) using an AgNO3 aqueous solution. When this Ag type zeolite is irradiated with a high energy electron beam of several hundred keV in a TEM, the chemical bonds in the zeolite crystal are broken and the cryst…
In this research a comparative study of the starting unit chain length effect on the electropolymerization of thiophene or its oligomers was carried out considering mono (1Th), bi (2Th), ter (3Th), tetra (4Th) and sexi (6Th)-thiophene as starting units.
Framework-incorporated vanadium mesoporous silica materials with different contents in vanadium were obtained by a facile, direct synthesis at room temperature, using VOSO4 x 5H2O as the vanadium precursor. The porous characteristics of the samples and the coordination environment of the vanadia in the structure were…
Photochromism involving chiral properties is important and interesting, particularly in the field of biological applications and liquid crystals. In this review, enantioselective and diastereoselective photochromic reactions based on thermally irreversible 6π-electrocyclizations are highlighted. Optical resolution of…
The X-ray studies of naphtalene derivatives, having bent mesogenic cores, evidenced a sequence of different types of two-dimensionally (2D) density modulated structures (columnar phases), with molecular blocks made either of layer fragments with C2 symmetry (smectic C) or C1 symmetry (general smectic C). The bilayer s…
Various bi-functional pyrazine-based chromophores were used as cross-linkers to probe directly the efficiencies of their incorporation into the shell of block copolymer micelles. In addition, the block copolymer micelles were made to carry pre-installed reactive functionalities along the central block of an amphiphili…
The photo-, thermo- and solvatochromic properties of 2,3-dihydro-1',3',3'-trimethyl-6-nitrospiro[1-benzopyran-2,2'-1H-indole] (BSP) and its photo-induced merocyanine isomer (MC) were investigated in phosphonium based ILs by UV-vis absorption spectroscopy. It was found that the kinetics and thermodynamics of the BSP <-…
Core-shell isomers of small magnesium clusters "doped" with a hydrogen molecule are theoretically studied and predicted to be weakly stable or metastable for different sizes of the system, allowing a low-temperature release of hydrogen. Evolution of H(2) inside Mg(n) is followed from the molecular species to two H ato…
Ceria-terbia solid solution nanobelts were prepared by an electrochemical route and tested as catalysts of high activity for CO oxidation.
Reversible surface relief structures are formed on amorphous films composed only of highly durable spirooxazine molecules by spatially patterned ultra-violet light exposure due to the mass transfer.
Superhydrophobic surfaces correspond to hydrophobic surfaces whose water contact angle is higher than 150°. Two new routes involving plasma technique are proposed to prepare such surfaces: the first one is a one-step process (CF4 plasma modification of low density polyethylene), and the second involves two steps (O2 p…