Search results

Polypropylene: Structure, blends and composites, Vol 3.
A house of cards structure in polypropylene/clay nanocomposites under elongational flow.
A herarhical structure and properties of intercalated polypropylene/clay nanocomposites.
How organo -montmorillonite truly affect the structure and properties of polypropylene.
Chemistry Materials, 13:p.3516-3523

Introduction Pyridylcarboxylic acid is the “ligand star” in coordination chemistry of metal-organic frameworks (MOFs) at all times.
The structures and properties of many coordination compounds formed by transition metal and lanthanide metal ions and the above-stated bpdc connectors were widely studied[2-9]. 2,2′-Bipyridine-6,6′-dicarboxylate (2,2′6,6′-bpdc) and 2,2′-bipyridine-5,5′-dicarboxylate (2,2′5,5’-bpdc) are also potential organic ligands to assemble novel coordination compounds[10-14].
The structure has been solved by direct methods (SHELXS-97) [15] and refined by full-matrix-least squares techniques on F2 with anisotropic thermal parameters for all of the non-hydrogen atoms (SHELXL-97) [18].
analysis of compound 2 The crystal structure of the title complex was refined to obtain more accurate structural parameters than those received in the first analysis [12].
holding the molecules together in the crystal structure For compound 2, the R values (Rgt(F)=0.0447, wRref(F2) = 0.1069) and the remaining electron difference density peak heights (0.472 and -0.318 eÅ–3) of the present analysis are significantly smaller than those values of the previous study (Rgt(F)=0.0678, wRref(F2) = 0.2109; 0.956 Å–3, –0.748 Å–3) [12].

However, there are already works devoted to the study of highly entropic systems with a more complex crystal structure.
For example, the authors of [20] obtained a highly entropy oxide phase with a spinel structure.
Ba, Sr, and Pb are the elements that most often act as cations in the formation of the hexaferritic structure.
Evolution of structure and properties of multi-component (AlCrTaTiZr)Ox films, Thin Solid Films, 518 (2010) 2732-2737
Dragoe, Room temperature lithium superionic conductivity in high entropy oxides, Journal of Materials Chemistry A, 4 (2016) 9536-9541

Our reference structures are SiC-NWs oriented along [001] and having crystalline structures with different morphologies and diameters (~ 0.5 - 5 nm).
Show one polytype of SiC corresponding to the zincblende structure (β-SiC).
Structures of hydrogenated SiC-NWs projected along the [001] crystalline direction.
Band structure for the NW-1: (a) Dangling bonds without saturation and (b) saturated with H-atoms.
Therefore, the surfaces of hydrogenated nanowires could be even more sensitive, and any changes in surface chemistry could have a pronounced effect on the sensing capability of the nanowires.

One of the heat-resistant solutions effective application areas is to protect the structures from the high temperatures’ effects in case of fire.
An effective way to improve the fire resistance of the building structures is to apply heat-insulating coatings to the surface.
One of the compositions to protect the structures from high temperatures is a heat-resistant solution based on the expanded clay sand and perlite.
Ailer, Chemistry of silica, translated from English by V.N.
Zalizovskiy, The use of expanded clay in heat-resistant concrete at the MHC in enclosing structures of thermal units, Heat-resistant materials, products and structures, - Chelyabinsk, 43-44

The chemical structures and properties were characterized by FT-IR, polarized optical microscopy (POM) and differential scanning calorimeter (DSC) respectively.
Introduction The thermotropic liquid crystalline polymers (LCPs)have still been attracting much attention owing to their high properties, which not only improve the molecular engineering, polymer chemistry and polymer physics, polymer processing and polymer applications, but also show numerous industrial applications in such fields as blends, composite materials, membrane materials, photoelectric, military, information, print, and so on [1–7].
POM texture structure of MCLCPs at different temperatures: (a) 65℃and (b) 135℃ Mesomorphic structures Usually the liquid crystallinity and the phase state variation are explained by the DSC curve and POM image together.

The impact of the shot balls is a deformed surface and produces a flat-like structure on osteosynthesis plate shot in 12 minutes time.
The surface structures were observed using a Scanning Electron Microscope (SEM) Table Top (Wrexham, U.K.) to identify the traces on the surface created by the impact of milling balls.
Arifvianto et al. / Materials Chemistry and Physics 125 (2011) 418–426
The Structure and Properties of Material, Vol.

Preparation and performance of polypropylene / modified carbon fibers by physical blending method CHEN Haifeng, MIAO Ying and KE Shanshan Department of Materials & Chemistry, Huzhou Teachers College, P.
The structure of chemical bond in PP/MCF was investigated by fourier transform infrared spectroscopy (FT-IR), and optical properties were characterized by UV-Vis reflective spectroscopy, UV-Vis transmission spectroscopy and Polarizing microscope.
Our group's solution is to combine the advantages of both materials, so we want to get polypropylene/modified carbon fibers (PP/MCF) material [4] and investigate the structure, preparation and properties including hardness, thermal & optical performance effects by MCF content.
And all spectrums of PP/MCF in different proportion are substantially same, which is caused by the basic C chain structure of carbon fiber.

Synthesis of Rare Earth Up-conversion Material and Application in the Dye-sensitized Solar Cells Jun Zhang1, a, *, Yinghong Qu1, b, Fengxiang Zhang1, c, Xiangda Peng1, d, Siyu Qian1, e and Lekai Li1, f 1School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Road, Hohhot 010021, China azhangjundoc@sina.com, bquyinghong@126.com, czfx8380062@163.com, dyumipxd@126.com, esuperyu007@foxmail.com, flilek@126.com Keywords: Rare earth, Up-conversion, Nano-crystal material, Dye-sensitized solar cells Abstract.
The micromorphology, structure and particle size of the up-converting nanoparticles were characterized by atom force microscopy (AFM) and X-ray diffraction (XRD).
From the diagram we can see, the prepared yttrium oxide was crystal structure.
These peaks display materials for the typical cubic structure, consistent with the literature [3] reported.

The chemical structures of the oils and the topography and surface roughness of the wear scar were also studied by FTIR and surface roughness tester as well, respectively.
UK) and the chemical structure of the bio-oil was characterized by infrared spectrometer (IR, Spectrum 100, PerkinElmer Co., Ltd.) respectively.
In order to understand the mechanism of the corrosive wear, the chemical structure of the oil was analyzed by FTIR, as shown in Fig. 4, the absorption peak at 1057cm-1 is belong to the skeleton vibration of the hexatomic ring [10].
Zhu: Journal of Fuel Chemistry and Technology, vol. 37 (2009), p. 49 [9] P.A.