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As-prepared polymer films had good redox activity and structure stability in concentrated sulfuric acid.
The process is of high interest for incorporating functional groups with specific electroactive properties to fine-tune structure-property relationships.
The electrochemical properties, structures, fluorescent properties, and morphology of the as-prepared polymer films were studied in detail.
Structures of N-(9H-fluoren-9-yl)methacrylamide (FMA) and its polymers.
Scheme 1 shows the structures of polymer bearing 9-aminofluorene moieties.

The quantitative structure property relationship (QSPR) study was performed in this work to develop models to predict the normalized reaction rate constants for the reductive debromination of polybrominated diphenyl ethers (PBDEs) by zero-valent iron (ZVI).
Several quantitative structure-property relationship (QSPR) studies have previously been carried out to investigate the inner relationship between the debromination rates and the molecular descriptors [4,7,9] These molecular descriptors are usually acquired by quantum chemical calculations in vacuum.
However, solute-solvent interactions can have dramatic effects on molecular energies, structures, and properties [10].
Therefore, they must be taken into account in computational chemistry when modelling reaction in realistic environment.
IUPAC Name BDE-209 deca-bromodiphenyl ether BDE-21 2,3,4-tri-bromodiphenyl ether BDE-183 2,2',3,4,4',5',6-hepta-bromodiphenyl ether BDE-12 3,4-di-bromodiphenyl ether BDE-153 2,2',4,4',5,5'-hexa-bromodiphenyl ether BDE-7 2,4-di-bromodiphenyl ether BDE-100 2,2',4,4',6-penta-bromodiphenyl ether BDE-5 2,3-di-bromodiphenyl ether BDE-66 2,3',4,4'-tetra-octa-bromodiphenyl ether BDE-3 4-mono-bromodiphenyl ether BDE-47 2,2',4,4'-tetra-bromodiphenyl ether BDE-2 3-mono-bromodiphenyl ether BDE-28 2,4,4'-tri-bromodiphenyl ether BDE-1 2-mono-bromodiphenyl ether Results and Discussion Quantitative Structure-Property Relationship (QSPR).

Preparation of iron-oxide coated porous ceramics filter and adsorption and degradation on methylene blue Fangwen Li1,a, Haiwu Jia1,b , Songjiang Ma1,c , Meiling Fu1 and Xiangjiang Wu1 1 School of Chemistry and chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P.R.China a lifangweng1@126.com, b 2008.jhw416@163.com, cmasji@sohu.com, Keywords: Ferric nitrate, Porous ceramic filter, Specific surface area, Methylene blue, Adsorption, Degradation Abstract: The aim of the present work is to obtain iron-oxide coated porous ceramics filter (IOCPCF) via dip-coating and test its adsorption and degradation for methylene blue (MB).
The effect of its structure and performance on adsorption and degradation of MB aqueous solution was investigated.
In the paper, IOCPCF was prepared by dip-coating and the effect of its structure and performance on adsorption and degradation of MB aqueous solution was investigated at a laboratory scale.
The change on porosity of filter was less at the former and latter of dip-coating, which indicated that iron coating was unlikely to clog pore of PCF and it was a porous structure.
The iron coating was composed of many tiny particles whose shape took on hexagon or roundness and diameter was 100nm or so (Fig.1(c)), which should be responsible for iron coating pore structure.

Structure characterization.
The crystalline structure was characterized by X-ray diffraction (XRD, Rigaku, Tokyo, Japan) using Cu Ka radiation.
The principal reason was that PBSZ possessed B-N six-membered ring and B-N-Si skeleton structure, which could construct a crosslinking structure with epoxy resin.
Journal of Industrial & Engineering Chemistry, 2012, 18(2): 594-596
Control of the Composition and Structure of Silicon Oxycarbide and Oxynitride Glasses Derived from PolysiloxanePrecursors.

The use of such cement makes it possible to achieve a significant economic benefit when fabricating building structures.
In the final analysis, this will significantly strengthen the concrete structure with wollastonite additives that has been confirmed by papers [7-11].
Conf.: Sustainable Concrete Technology and Structures in Local Climate and Environment conditions, Ho Chi Minh City, Vietnam. (2008) 347-355
Rakhimbaev, On the calculation of the effective ion charges from thermochemical data, Journal of Physical Chemistry.
Taylor, Proposed structure for calcium silicate hydrate gel., J.

The next procedure was to use X-Ray and polarizing microscope to identify the slag’s phase and analyze the mineral phase structure.
a) 4% compound texturizer×50 b) 9% compound texturizer ×50 c) 14% compound texturizer ×50 Fig.6 Effect of Adding compound texturizer on the mineral phase structure After adding compounded texturizer, the microscopic structure of slag was as shown in Fig.6.
The structure of slag was another important cause to affect the crystallization of slag.
In order to keep electric neutrality of local area, alkali metal ion must lies in the random location of the whole structure.
Sun Guanghan studied it from the angle of crystal chemistry and put forward the relation between bond strength of oxide and glass forming.

A sketch of the structure is shown in Fig. 2.
The stacking structure of flat (bottom left) and puckered (bottom right) atom layers is shown in the top left part of the structure.
The possibility of using ab initio methods for surface structure calculation of CMA appears extremely useful to get access into the surface chemistry, as STM does not usually provide chemical selectivity.
Although the interaction of CMA surfaces with their environment (like oxidation and corrosion properties) seems to be mainly influenced by the chemistry, other properties like friction appears to be correlated with the electronic structure.
These systems are interesting because they offer a testing ground to probe the physical properties of quasiperiodic systems independently of the complex chemistry usually associated with CMA.

These surface structures are similar to the microstructural features reported in the literature [11, 12]: homogenous granular structure, complex cross lamellar/spherulitic structure, and nacre structure.
One of the HDPE sample showed spherulitic structure.
SEM micrographs of the main structures observed in PMMA implants: (a) homogenous granular structure, (b) islands, (c) spherulitic structure, (d) nacre structure.
Wang, Surface modifications of bone implants through wet chemistry, J.
Meyers, Growth and structure in abalone shell, Mater.

To minimize these problems which affects device performance a bilayer structure made of poly(p-phenylene vinylene) (PPV) and a cyano-PPV was proposed [3].
Nevertheless, the fabrication of such bilayer structures have severe limitations since the majority of the polymers used in these structures share the same solvent and the deposition of the upper polymer layer tends to dissolve the underlying polymer one, leading to a mixing of both polymer layers at polymer/polymer interface [2, 8], that has found application in photovoltaic devices [9, 10].
Device Model and Simulation Method PLEDs with a bilayer structure are made by the deposition of the polymer thin film by spin-coating.
As a result of this deposition technique, the morphology of the polymer film at nanoscale is a mixture of long polymer chains, similar to a "spaghetti structure", that are lied on planes parallel to the electrodes surface.
The energetic disorder has its origin on the polymer chemistry and the polymer segment length distribution.

The wide range of applications of zirconia based ceramics is due to stabilization of its tetragonal and cubic structures at room temperature, by controlled adding of dopants such as yttria, magnesia, calcia, ceria and some rare earth oxides.
Petrov: Analytical Chemistry of Zirconium and Hafnium.