Materials Literature
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Three used PP-based car bumpers are characterized by many techniques (fractionation, IR, TGA, DSC, DMTA, and SEM). They show different impact and static and dynamic mechanical properties depending on their composition and morphology. It appears that block copolymer compatibilizers constituted by polyethylene-polypropy…
An electrically-modulated laser was fabricated based on cholesteric liquid crystal photonic band gap. To lower the modulation voltage, the nematic liquid crystals with high dielectric constant was selected, and thus, the emission energy can be modulated with a voltage of less than 10 V. Polymer stabilization was carri…
SiO2-PNIPAAm core-shell microgels (PNIPAAm=poly(N-isopropylacrylamide)) with various internal cross-linking densities and different degrees of polymerization were prepared in order to investigate the effects of stability, packing, and temperature responsiveness at polar-apolar interfaces. The effects were investigated…
Abstract Diethylenetriaminepentaacetic acid (DTPA)–bisamide derivatives functionalized with p ‐toluidine, 6‐aminocoumarin, 1‐naphthalene methylamine and 4‐ethynylaniline were synthesized and fully characterized by mass spectrometry, NMR spectroscopy, FTIR spectroscopy and elemental analysis. Ln III complexes (Ln = Gd,…
The effects of neutron-induced damage on the ferroelectric properties of thin film lead zirconate titanate (PZT) were investigated. Two sets of PbZr0.52Ti0.48O3 films of varying initial quality were irradiated in a research nuclear reactor up to a maximum 1 MeV equivalent neutron fluence of (5.16 ± 0.03) × 1015 cm−2.…
The compositional dependent dielectric properties of [001]-poled Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal are investigated along the [011] growth direction. The variation of Pb(In1/2Nb1/2)O3, Pb(Mg1/3Nb2/3)O3, and PbTiO3 content of crystal boule with a length of 70 mm are found to be around 1.3%, 10.5%,…
This work is concerned with plane waves propagating through an isotropic nonlocal micropolar solid.Two longitudinal waves and two sets of coupled transverse waves propagating with distinct speeds may travel in the medium.All these waves are found to be dispersive in nature.Reflection coefficients and energy ratios are…
Polyethylene-based waste plastics need hundreds of years to degrade in atmospheric conditions, so innovative upcycling processes are necessary in addition to traditional recycling services. This study presents an environmentally benign and solvent-free autogenic process, in which waste plastics such as waste polyethyl…
Optical fiber amplifiers based on PbS/CdS semiconductor quantum dots (QDs) modified by an amphiphilic polymer were demonstrated. Well-defined QDs and an amphiphilic copolymer were first prepared and the amphiphilic copolymer was then used to disperse the QDs into silica sol to allow uniform and reproducible incorporat…
Heterogeneous catalysis relies to a large extent on the reactivity of metal nanoparticles. The surface of these particles consists of atomically smooth terraces and edges. As local environments of atoms in edges and terraces are different, their catalytic ability varies. This severely complicates accurate predictions…
Water chemistry control is one of the key technologies to establish safe and reliable operation of nuclear power plants. Continuous and collaborative efforts of plant manufacturers and plant operator utilities have been focused on optimal water chemistry control, for which, a trio of requirements for water chemistry s…
The development of a facile covalent strategy for the fabrication of organic conducting polymers (OCPs)/carbon nanotubes (CNTs) based molecular hybrid materials remains a challenge and is expected to address the detrimental intrinsic bundling issue of CNTs. In view of the pristine CNTs’ ability to undergo Diels–Alder…
Abstract The acidity of europium(III)‐exchanged zeolite L (Eu 3+ /ZL) and its influence on the luminescence performances of encapsulated europium(III) β‐diketonate complexes are reported. The results indicate the importance of understanding the acidity of Eu 3+ /ZL in the preparation of luminescent host–guest material…
: We theoretically study the properties of the optimal size distribution in the ensemble of hollow gold nanoshells (HGNs) that exhibits the best performance at in vivo biomedical applications. For the first time, to the best of our knowledge, we analyze the dependence of the optimal geometric means of the nanoshells'…
Structural, mechanical, thermal, and electrical properties of low‐loaded (0−1.5 wt%), untreated, and treated (with heat and nitric acid) multiwalled carbon nanotubes (MWCNTs)/poly (lactic acid) (PLA) nanocomposites have been studied. Among all synthesized composites, acid‐treated 1.0 wt% MWCNTs reinforced PLA shows su…
A chain‐extender based on 1,1′‐Carbonyl‐Bis‐Caprolactam (CBC) was melt compounded with a commercial Polyamide 6 (PA6) by using a twin screw extruder. Rheological, thermal, and mechanical tests were performed on the resulting materials to evaluate the chain extension capability of CBC. Rheological tests on the compound…
This study is an analytical investigation of processability of biopolymer‐carbon based nanofiller composites primarily through rheological investigation of samples. The composites were fabricated via dry mixing and melt‐blending of biodegradable polylactide (PLA) and nanographite platelets (NGP) in a Brabender twin sc…
Elastocapillary self-assembly is emerging as a versatile technique to manufacture three-dimensional (3D) microstructures and complex surface textures from arrangements of micro- and nanoscale filaments. Understanding the mechanics of capillary self-assembly is essential to engineering of properties such as shape-direc…
2-Amino-4,6-dimethylpyrimidinium p-hydroxybenzoate (ADPHB), a novel organic material, was synthesized, and crystals were grown by slow evaporation solution growth method. The cell parameters and crystalline perfection of the grown crystal were studied by single crystal and powder X-ray diffraction analyses. The presen…
We present here the implementation of a magnetoelectric memory with a voltage driven writing method using a ferroelectric relaxor substrate. The memory point consists of a magnetoelastic element in which two orthogonal stable magnetic states are defined by combining uni-axial anisotropy together with a magnetic polari…