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., Kharkiv, Ukraine, 61002 2State Enterprise “Ukrainian State Science Research Coal and Chemistry Institute”, 7, Vesnina str., Kharkiv, Ukraine, 61023 avladislavavladimirenko@gmail.com, bko@ukhin.org.ua Keywords: coal coke, specific electrical resistance, coke readiness, final coking temperature.
As we can see from these data, an increase in the final coking temperature contributes to the growth of coke readiness and the degree of orderliness of its structure.
Therefore, the majority of carbon in coke is in the form of condensed polyaromatic structures, which are characterized by sp hybridization of the electronic shells of carbon atoms.
According to the zone theory of the structure of a solid, the dependence of the specific electrical resistance of coke on the final coking temperature has an exponential character.
Koshkarev, Mehod opredeleniya velichiny electricheskogo soprotivleniya uglya v zavisimosti ot on temperature, Scientific works of DonNTU, Series: "Chemistry and Chemical Technology", Donetsk: DonNTU, 134 (2008) [in Russian]

Studies on Multihollow PUA-EMA-St crosslinked copolymer beads: Synthesis and hollow structure Weihong Suna, Xin Yanb (Department of Chemistry and Material, Naval University of Engineering, Wuhan 430033, China) asunweihong3000@126.com, byanxinh@189.cn Keywords: multihollow, bead, polyurethane acrylate, ethyl methacrylate, styrene.
In order to observe the inner structures of the beads, two beads of PUA-EMA-St copolymer with 60% of the mass ratios of n-heptane to total monomer were cut into halves respectively, the SEM images of the sections were taken as shown in Figure 2.
The influence of monomer types on hollow structures Fig 4 shows the SEM images of the beads of PUA-EMA and PUA-St crosslinked copolymers (The mass ratio of DVB to PUA is 2.5/70).
Comparison with the PUA-EMA-St (70/15/15) copolymer, PUA-EMA (70/30) and PUA-St (70/30) copolymers have almost same hollow structures.
The results illustrate that the hollow structures of PUA crosslinked copolymer beads are almost independence of the type of another monomer, when the composition ratios and the mass ratios of porogen to total monomer are same.

The structure and morphology of the samples were characterized by X-ray diffraction, scanning electron microscopy.
Experimental Li4Ti5O12 composites were prepared by a solution method.The crystal structures of Li4Ti5O12 were characterized by X-raydiffraction (XRD, Rigaku D/MAX-RC) with Cu Kα radiation(λ = 1.5405 Å, 45.0 kV,50.0 mA).
Fig.1XRD pattern of Li4Ti5O12 powders Crystalline structure analysis.
All the diffraction peaks could be indexed as spinel structure (cubic phase, space group Fd 3m) were in accordance with JCPDS card No-26-1198 without any impurity, indicating that the material exhibited pure phase of Li4Ti5O12 with a spinel structure.
Physics and Chemistry of Solids Vol:69 (2008), P.1454 [6] K.

The products had a dense grain structure with a particle size 200-500 nm.
The morphology and structure of the phases being formed and the possibility of different products formation depend on it.
The morphology and structure of synthesis products are studied.
References [1] Ivanovskii A.L., Superconductor MgB2 and related compounds synthesis, properties, electron structure/ A.L.
Ivanovskii // Successes of chemistry -70. —2001.— P. 811- 829

FTIR spectroscopy, before and after thermal treatment, does not show major changes in chemical structures.
The changes in chemical structures and composition were monitored with FTIR spectroscopy before and after heat treatment.
R_100 and R_150 have a glassy structure.
Chen, Developments in the field of rosin chemistry and its implications in coatings, Prog.
The structure of palustric acid and its photosensitized oxidation, J.

Preparation and characterization of BaTiO3/ PVDF inorganic-organic composite ultrafiltration membranes Lingdi Chen1,a, Guoxi Jin2,b, Xiaobo Wu3,c, Wanzhong Lang4,d and Dazhi Sun5,e Department of Chemistry Laboratory Of Shanghai Normal University,100 Guilin Road, Shanghai 200234,China alingdichen@126.com, bhofmann@126.com, cwxb0515@126.com, dwzlang@shnu.edu.cn esundazhi@shnu.edu.cn Keywords: BaTiO3/PVDF, inorganic- organic, ultrafiltration membrane Abstract.BaTiO3-PVDF(polyvinylidene fluoride) composite ultrafiltration membranes were prepared by a phase separation method.The surface and cross-section of the membranes were investigated by atomic force microscopy and scanning electron microscope.The results showed that the morphology of PVDF membrane can be disturbed by BaTiO3.Albumin bovine serum retention and the water flux of the blend membrane increase.The phenomenon is discussed in terms of the modification of spongy layer and finger-like structure in the blend polymer.
Fig.1 Effict of BaTiO3 different contents on the Pure Water Flux and Retention SEM micrographs of cross-sections of PVDF membranes with different compositions have been obtained in order to investigate the microstructure of the PVDF and BaTiO3/PVDF membranes.As depicted in Fig.3,all the membranes exhibit the typical asymmetric structure,consisting of a sponge-like structure and finger-like structure.
From the results shown in Fig.3,by adding BaTiO3 particles,finger-like structure was increased,which may enhance the water flux the membrane.
It is because the water flux may be affect by finger-like structure.The roughness of compsite membrane may controlled by addition of inorganic particles.It plays an important role in improving the water flux and retention as well.

Detection of pH increase at the surface of cathodically polarized metal by means of amphoteric metals activation KOURIL Milan*1, PALFFY Alexander1, HRUSKA Jan1, NOVAK Pavel1, MSALLAMOVA Sarka1 1University of Chemistry and Technology, Prague, Faculty of Chemical Technology, Czech Republic kourilm@vscht.cz *corresponding author Keywords: cathodic protection, buried structures, cathodic activation, cathodic passivation Abstract: Nowadays, the cathodic protection is a common way of additional corrosion protection of buried structures.
This is how the principle of cathodic protection and the establishment of an empiric criterion -850 mV/CSE (Kuhn‘s protective potential) [1,2] used for cathodic protection of buried steel structures are explained.

Among them,chemistry of the molybdenum oxides is one of important part that not only due to their intriguing variety of architectures and topologies, but also due to their practical applications such as selective oxidation of methanol and antitumor activity [3].
Structure description Compound I crystallized in the triclinic system, space group P-1 by virtue of X-ray single crystal diffraction analysis.
The crystal structure of Compound Iconsists of one-dimensional molybdenum oxide chains [Mo8O26]n4n ,constructed from [Mo8O26]4 anions via edge-sharing and NH 4+ cations, served to neutralize charge (Fig.1).
As it is common for the molybdenum oxide structures, the Mo-O bond distance is in a range from 1.693(3) to 2.427(3) Å.
Fig.1 Structure of Compound I(from left to right):a) view of the cluster ion [γγγγ-Mo8O26]; b) view of the 1D chain propagate along a-axis; c) packing diagram along b-axis Compound II respects octhorhombic, Pbca symmetry, whose molecular structure is generated by 2D layers built by [Mo4O13]2 cluster anions.

Microwave-CVD Diamond Protective Coating for 3D structured Silicon Microsensors H.
The elaboration of the coating method opens the way towards other 3D structured sensor applications.
Experimental The test structure The test structure is a capacitive pressure sensor chip formed by wafer bonding of two silicon elements.
Structure of the capacitive pressure sensor.
Process optimisation for 3D structures 3D structured microsensors may contain deep cavities, tapered or vertical sidewalls, membranes, suspended parts, etc., which must be covered by the protective diamond layer.

with more meso-macro porous structure.The alkalinity in reaction medium has a pronounced effect on the relative crystallinity of Y zeolite.
Phase structures of the obtained samples were identified with X-ray powder diffraction (XRD) taken on a Rigaku-D-Max rA 12 kW diffractometer with Cu Kα radiation (λ=1.54056 Ǻ) at an operation voltage and current of 40 kV and 30 mA, respectively.
It can be seen that the XRD pattern of the product shows the typical structure of Y zeolite, which suggests that the NaY zeolite has been successfully synthesized by the in situ crystallization method from sepiolite and catalyst residue in the present work.
This further confirms the hierarchical pore structure of the sample.
By the t-plot method, it is estimated that the contribution of the microporous structure to the total pore volume is about 0.25 cm3 /g from N2 adsorption, as shown in Table 1.