Materials Literature
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Microparticle drug carriers made of biodegradable functional polyesters were produced. The polyesters consist of a poly(ε-caprolactone) backbone bearing pendant acryloyloxy and methacryloyloxy groups. Stable microparticles were prepared via an oil/water emulsion-solvent evaporation technique eventually combined with a…
We propose and demonstrate an object-image-grating self-tiling method for doubling the effective aperture of a grating by tiling it with its image to form an object-image-grating pair. With the aid of the object-image relation, the line-density variation, angular tip, and longitudinal piston errors within a tiled grat…
Poly(N-ispropylacrylamide) [PNIPAM] is a widely studied polymer for use in biological applications due to its lower critical solution temperature (LCST) being so close to the human body temperature. Unfortunately, attempts to combine carbon nanotubes (CNTs) with PNIPAM have been unsuccessful due to poor interactions b…
Molecular spin clusters are mesoscopic systems whose structural and physical features can be tailored at the synthetic level. Besides, their quantum behavior is directly accessible in the laboratory and their magnetic properties can be rationalized in terms of microscopic spin models. Thus they represent an ideal play…
Abstract The mechanical properties of styrene‐butadiene rubber (SBR) vulcanizates prepared using various plasticizers including liquid polybutadiene and styrene‐butadiene copolymers were investigated. The effect of the liquid polymers as the plasticizers on the mechanical properties of the polymers, such as the hardne…
Abstract The electronic properties of a series of seven mononuclear Mn II complexes with an N/O and N/Cl coordination sphere have been investigated by X‐ and Q‐band EPR spectroscopy as well as by density functional theory (DFT). The [Mn(terpy)(CF 3 CO 2 ) 2 (H 2 O)] ( 1 ), [Mn(pb) 2 (CF 3 SO 3 ) 2 ] ( 2 ), [Mn(pb) 2 (…
The aim of this work is to study the transport of small molecules through the hybrid systems polyamide 12 (PA12)/organo-modified montmorillonite (Cloisite 30B, C30B) prepared by melt blending, using two blending conditions. The transport mechanisms were investigated by using three probe molecules: nitrogen, water, and…
Polarization grating recording in an amorphous and nonchiral azo copolymer has been investigated. The reported study shows that the amorphous polymeric film undergoes a light-guided inhomogeneous supramolecular modification as a consequence of the illumination with proper polarized light patterns, acquiring new functi…
Abstract Measurements are reported for attenuation lengths in overlayers of guanine, poly(styrene), poly(methyl methacrylate) and poly(2‐vinylpyridine) in the energy range 700–1400 eV to evaluate the accuracy of theoretical computations and generic equations. The layers are deposited on gold, either by evaporation and…
Electrochemical measurements were performed to explore the influence of cationic surfactants on the corrosion inhibition in the moving fluid with and without abrasive particles. The surfactants of the type of N -alkyl quaternary ammonium salts with different chain length (myristyltrimethylammonium bromide, chloride MT…
The electroactive benzothiazole hydrazone AMBTH-H(2), a new member of the 2,2'-azino-bis(N-alkylbenzothiazole) family, was synthesised in a five-step procedure and characterised by using X-ray diffraction along with two intermediates and the N-methylbenzothiazole hydrazone MBTH-H(2). Both AMBTH-H(2) and MBTH-H(2) were…
We introduce a technique to decompose the scattered near field of two-dimensional arbitrary metaatoms into its multipole contributions. To this end we expand the scattered field upon plane wave illumination into cylindrical harmonics as known from Mie's theory. By relating these cylindrical harmonics to the field radi…
Abstract The most widespread application of polymers in structural applications is their use as pipe material for e.g., gas distribution systems. Pipes have a design lifetime of typically 50 years, which rules out real‐time lifetime assessment methods. Here, an engineering approach is presented, which makes it possibl…
A series of thermo-responsive PNIPAM copolymers containing different amounts of fulgimide moieties has been synthesized via a polymer analogous reaction of poly(pentafluorophenyl acrylate). All copolymers were designed to exhibit a lower critical solution temperature (LCST) in water, which was only weakly dependent on…
The utilization of single-crystal diamond offers a way to achieve extreme semiconductor and mechanical properties of diamond for microelectromechanical systems (MEMS). However, current diamond MEMS devices are limited to polycrystalline or nanocrystalline films. In this paper, we report on the batch fabrication and me…
Exposing ZnO nanoparticles to atomic and molecular hydrogen at room temperature decreases the transmission coefficient, which demonstrates that diffusion of hydrogen atoms to subsurface and bulk ZnO sites already occurs at these fairly low temperatures (see figure). The interstitial hydrogen atoms act as n-type shallo…
Abstract Low‐density polyethylene (LDPE) was filled with blends of different proportions of two sizes of calcium carbonate (CaCO 3 ; 600 and 2500 mesh). The torque of the LDPE/CaCO 3 samples was measured with a torque rheometer. The results showed that the process torque values of the LDPE/CaCO 3 samples obviously dec…
Abstract We have performed first principles total energy calculations to investigate the structural and reactivity parameters of the lithium and fluoride doped graphene and boron nitride coronene‐like (C 24 H 12 ) structure nanosheets. The exchange and correlations potential energies are treated in the local density a…
Abstract Epoxy/kaolinite nanocomposites were prepared by adding the organically modified layered kaolinite to an epoxy resin [biphenyl phenol novolac epoxy resin (BPNE)] with 4,4′‐diamino biphenyl sulfone (DDS) as a curing agent. The dispersion state of the kaolinite within crosslinked epoxy‐resin matrix was examined…
Mn-doped In 2 O 3 nanopyramids have been grown by a catalyst-free thermal process at 700 °C using InN and Mn 2 O 3 powders as precursors. Energy dispersive spectroscopy, as well as X-ray photoelectron spectroscopy, demonstrate the presence of Mn in the pyramids in a content below 1 at. %. In addition to pyramids, nano…