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The increase in the amount of released water above 300 °C for all samples is not related to the quality of drying, but is most likely associated with the beginning processes of structuring the main polymer chain.
As an object of study, the SFC of the following structure was used: The temperature range from 100 to 500 °C was chosen, which allowed us to follow the processes of both crosslinking, “curing”, thermal and thermal oxidative degradation.
As the object of study, a copolymer of polyphenylene sulfone with phenolphthalein (PPSePP) was synthesized in accordance with the procedure [16] of the following structure: The studies were carried out according to the method [17] which allows with high accuracy to dose water into the pyrolytic prefix.
Buller, Heat-resistant polymers, Chemistry, Moscow, 1984
Kharkov, The dependence of thermal stability on the chemical structure and the structure of polyheteroarylenes, Vysokomolek. soed.

One of the methods for solution of the problem of polyethylene degradation is based on the use of composites with added natural biodegradable polymers or pro-oxidants to the polyethylene structure [2,3,4].
The diffraction patterns show presence in its structure of crystal and amorphous phases (a crystal phase there corresponding three reflexes, and an amorphous - halo).
Discussion The resistance of polyethylene to biological destruction is connected with its hydrophobicity, 3-dimensional structure and density of macromolecules packing.
Film degradation starts with destruction of amorphous phase and continues with destruction of the film structure and destruction of crystals.
It is possible that observed changes in polyethylene structure during composting were caused by microorganisms, but the warms also took part in the process of biodegradation at least by providing better contact of polyethylene with microbial complex of compost.

Boo b Department of Chemistry and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea ackjung7818@skku.edu, bjhboo@chem.skku.ac.kr Keywords : TiOxNy thin films, Optical &Structural properties, TEM analysis Abstract.
The crystalline structure of the thin film was characterized with XRD technique to analyze their structural properties.
Contact mode AFM was also used for observation of the surface structure of films.
Transmission electron diffraction (TED) image also shows crystalline structure.
All the strong peaks can be indexed to a pure NaCl-type structure [1].

To obtain high strength aerogel composites, the typical ways is using fibrous material as skeletal structure to improve the strength of aerogel [5].
The first is low solid thermal conductivity which is caused by the unique porous structure.
But the porous structure remains relatively complete.
Due to the porous structure, Al2O3-SiO2 aerogel is a kind of brittle materials and possesses poor mechanical properties which are virtually nil.
Chemistry of materials, 1997, 9(11): 2464-2467

Effect of Twice Stablizing Heat Treatment on the Properties of 347H Stainless Steel Zhijuan Zhao1,a, Xuetao Zhang1,b, Qiang Dai1,c, Yan Rong1,d, Jingmiao Li1,e, Bo Zhao1,f,* 1Institute of Chemistry, China Special Equipment Inspection & Research Institute, Beijing, China, 100029 azhaozhijuan91@163.com, b13810908571@139.com, cdaiq2810@163.com, dry16600247068@163.com, elijingmiaocsei@163.com, fzhaobo@163.net Keywords: 347H stainless steel; Stabilizing heat treatment; Intergranular corrosion Abstract.
However, 347H pipe is welded on-site in the actual installation process of the equipment, and the structure of the weld metal is conventional solution state.
C Si Mn P S Cr Ni Nb Samp 0.07 0.309 1.287 0.018 0.0015 17.7 10.97 0.64 Std. 0.04-0.1 ≤0.75 ≤2.0 <0.03 <0.015 17.0-19.0 9.0-13.0 8C-1.10 347H samples are treated to obtain three kinds of structure state, which is the original solution state, the primary stabilizing state and the twice stabilizing state, respectively.
As can be seen, 347H stainless steels in three states exhibited first-class stepped structure and no intergranular corrosion tendency when unsensitized.
After sensitized heat treatment, the materials appeared great difference. 347H stainless steels in the original solution state showed three class grooves structure, and 347H stainless steels in the primary and twice stabilizing states showed first-class stepped structure, which indicated that stabilizing heat treatment had an inhibitory effect on the sensitization of materials.

Introduction It is important to control the particle morphology (shape and size) and crystal structure for the effective application of the nanoparticle.
Titanium dioxide (TiO2) has two typical phases such as anatase and rutile, of which the rutile structure is stable at the condition of room temperature and air [1].
Therefore the nucleation in initial stage forms TiO2 nanoparticles with amorphous structure.
At the flame condition having the low temperature and long flame, it was hard to make a perfect crystal from the initial stage of nucleation and it was easy to form the TiO2 nanoparticle with the amorphous structure in the initial stage of flame.
Trotman-Dickenson: Comprehensive Inorganic Chemistry (Pergamon Press, UK 1973) [2] T.

Introduction Silicon carbide (SiC) is a wide bandgap compound semiconductor with a well-defined lattice structure consisting of Si and C in a 1:1 ratio.
However, while Si1-xCx has the same lattice structure as 3C-SiC the huge chemistry difference between Si and C has been shown to result in an initial drop in the bandgap under various simulation conditions due to the localized strain caused by C atoms [7].
The leakage current and overall performance of these diodes will be compared to that found in 3C-SiC/Si heterostructures and linked to the physical structure of both Si1-xCx and 3C-SiC epilayers.
The lack of thickness fringes and broad peak of the 1.7% and 2.4% Si1-xCx epilayers implies relaxation and the possibility of polycrystalline structures which will undoubtedly introduce planar defects.
The 1.7% and 2.4% Si1-xCx samples both show larger leakage current under reverse bias than the 1% sample, caused by relaxation and defects in the crystal structure.

Introduction The advantageous of lightweight concrete (LWC) over the normal weight concrete (NWC) can be presented by the reduction of the dead-weight of structure, better thermal insulation for buildings and less cost for transportation [1].
The lightweight aggregate concrete (LWAC) has obvious advantages of high strength-to-weight ratio, good tensile strength, low coefficient of thermal expansion, and superior thermal and acoustic insulation characteristics due to the air voids within its structure [2].
Further, the geopolymers materials has early strength, low permeability, excellent resistance to chemical attacks, good freezing-thawing cycles and a tendency to immobilize the heavy metal ions in the geopolymeric structure [5-7].
Davidovits, Chemistry of geopolymeric systems, terminology, Proc.
Lee, Properties of alkali-activated mortar and concrete using lightweight aggregate, Journal of Materials and Structures, Vol. 43, pp. 403-416, 2010

For the application in the high-pressure regime, wrought processing and/or a modification in chemistry is required to enhance its strength and ductility.
Two phase titanium aluminide contains a mixture of α2 (DO19 crystal structure) and γ (L10 crystal structure) phases at room temperature.
The brightest line type of mark can also be seen at the center of the dendritic arms, which is corresponding to the V and/or Nb reach region and has possible structure of Ti2AlNb (or Ti2AlV).
From the micro-structure it is also clear that the major fraction of the recrystallized grains is corresponding to the γ-phase.
As-cast micrograph consist of dendritic structure which has a very strong lamellar orientation within it with respect to solidification direction. 2.

Shveykin b Ural Branch of the Russian Academy of Sciences, Institute of Solid State Chemistry, 91, Pervomaiskaya st., Yekaterinburg, Russia anikolaenko@ihim.uran.ru, bshveikin@ihim.uran.ru Keywords: precipitation, thermolysis, reduction, carbonization, microwave synthesis, tungsten, titanium, vanadium carbides Abstract.
As a result of sample assessment, the phase composition, structure, morphology and particle size, as well as the size of specific surface areas have been determined.
Results and discussion The particle structure and morphology were identified with the use of electronic microscopy and X-ray diffraction analysis of the obtained precursors.