Materials Literature
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The novel heteronuclear compounds [Zn(hydet-en)2Pd(CN)4] (1) and [Cd(hydet-en)2Pd(CN)4] (2) {hydet-en: N-(2-hydroxyethyl-ethylenediamine)} have been synthesized and characterized by elemental analyses and IR spectra. The crystal structures of 1 and 2 have been determined by X-ray diffraction. Structural analysis shows…
Abstract The aim of this study was to prepare poly‐ϵ‐caprolactone (PCL) foams, with a well‐defined micrometric and bimodal open‐pore dimension distribution, suitable as scaffolds for tissue engineering. The porous network pathway was designed without using toxic agents by combining gas foaming (GF) and selective polym…
Tuning of emission chromaticity in poly(N-vinylcarbazole) nanotubes by efficient energy transfer to luminescent Eu(dbm)3(Phen) organo-lanthanide chelate dopants is demonstrated. Nanotubes are synthesized by solution assisted template wetting. Under optical excitation, undoped tubes luminesce in the blue while doped tu…
Polyhydroxyalkanoates (PHAs) have attracted the attention of academia and industry because of their plastic-like properties and biodegradability. However, practical applications as a commodity material have not materialized because of their high production cost and unsatisfactory mechanical properties. PHAs are also b…
Abstract Characteristic similarities and differences in polycondensations of ‘a − b’ and ‘a 2 + b 2 ’ monomers are described including cyclic ‘a − b’ and cyclic ‘a 2 ’ monomers. Polycondensations of ‘ab 3 ’ monomers that yield (hyper)branched polymers are compared with polycondensations of ‘a 2 + b 3 ’ monomers that y…
Abstract A series of π‐extended TTFs (exTTFs) bearing one ( 8 , 16 , 19 ) or two ( 14 ) dibenzylammonium units have been threaded through a dibenzo‐24‐crown‐8 (DB24C8) ring covalently linked to a C 60 sphere. Whereas 8 and 14 were prepared in a multistep synthetic procedure involving Sonogashira cross‐coupling reactio…
Abstract A copolymer of 1‐(4‐fluorophenyl)‐2,5‐di(thiophen‐2‐yl)‐1 H ‐pyrrole (FPTP) with 3,4‐ethylene dioxythiophene (EDOT) was electrochemically synthesized and characterized. While poly(FPTP) (P(FPTP)) has only two colors in its oxidized and neutral states (blue and yellow), its copolymer with EDOT has five differe…
Abstract Multiferroic epitaxial Bi‐Fe‐O thin films of different thicknesses (15–500 nm) were grown on SrTiO 3 (001) substrates by pulsed laser deposition under various oxygen partial pressures to investigate the microstructural evolution in the Bi‐Fe‐O system and its effect on misfit strain relaxation and on the magne…
In an effort to understand the role of molecular structure on the thermal properties of polyesters and copolyesters, the following polyesters were synthesized: poly(1,4-cyclohexane dimethylene terephthalate) (PCT), poly(butylene-1,4-cyclohexane dicarboxylate) (PBCD), poly(1,3-cyclopentane dimethylene terephthalate) (P…
Lanthanide(III) complexes of the enantiopure chiral hexaaza tetraamine macrocycle L, 2(R),7(R),18(R),23(R)-1,8,15,17,24,31-hexaazatricyclo[25.3.1.1.0.0]-dotriaconta-10,12,14,26,28,30-hexaene, as well as of its meso-type 2(R),7(R),18(S),23(S)-isomeric macrocycle L1, have been synthesized and characterized by spectrosco…
The overarching goal of this two-part paper is to provide a more unified understanding of NiTi shape memory alloys intended for use in structural engineering applications. Here, we present results from basic materials characterization of large diameter polycrystalline NiTi bars. Deformation processed bars with diamete…
Ammonium aluminum carbonate hydroxide (AACH), a material isostructural with the mineral dawsonite (NaAl(OH) 2 CO 3 ), leads to finely dispersed and high-surface area Al 2 O 3 upon thermal decomposition. This family of compounds exhibit memory effect, i.e., the dawsonite structure can be recovered upon treatment of the…
The growth of boehmite nanostructures at low temperature using a soft chemistry route with and without (PEO) surfactant is presented. Remarkably long boehmite 1D nanotubes/nanofibers were formed within a significantly short time by changing the reaction mechanism of aluminum hydroxide. By using the PEO surfactant as a…
Highly aligned conducting polymer nanowires have been grown between two nanometer-scale metal electrodes, providing a simple way to incorporate single and multiple nanowires into pre-patterned electrical circuits. A highly sensitive nanowire chemical sensor has been fabricated as a proof-of-concept of this method and…
Two isomorphous one-dimensional chain complexes Co(NCS)2(Him)2 (1) and Mn(NCS)2(Him)2 (2) (Him = imidazole) have been prepared and characterized structurally. Both 1 and 2 crystallize in the monoclinic system, space group P21/n, and the structures consist of one-dimensional polymeric chains in which metal ions are bri…
A series of one-dimensional (1-D) telluridoindate compounds built from InTe 4 tetrahedra sharing opposite edges were synthesized, and the structures of the {[InTe 2 - ]} ∞ chains were classified as three types. Compound [Zn(taa)(μ-tren) 0.5 ][InTe 2 ]Cl ( Ia ) has a common structure feature of a 1-D straight chain (ty…
High-sensitivity and visible-blind ultraviolet (UV) photoconductive detectors based on SrTiO(3) single crystal with interdigitated electrodes are reported. The responsivities of photovoltage and photocurrent can reach 2.13x10(5) V/W and 213 mA/W, respectively, at 330 nm at ambient temperature, and the corresponding qu…
Haloalkane dehalogenase from Xanthobacter autotrophicus (XaDHL) was overexpressed under different isotopic conditions to produce fully hydrogenous (h-XaDHL) and perdeuterated (d-XaDHL) enzyme forms. Deuterium atoms at labile positions were allowed to back-exchange during purification and hydrogenous solutions were use…
Abstract Multiwalled carbon nanotubes (MWNTs) were effectively functionalized with KMnO 4 in the presence of a phase‐transfer catalyst at room temperature. The hydroxyl functionalized MWNTs were reacted with a vinyl‐group carrying silane‐coupling agent and the terminal vinyl groups were used to fabricate polystyrene (…
Abstract Frontal polymerization (FP) has been successfully applied, for the first time, to obtain polymeric nanocomposites containing polyhedral oligomeric silsesquioxanes (POSS) in an amine‐cured epoxy matrix. Variations of maximum temperature ( T max ) and front velocity ( V f ) have been studied. A comparison of th…