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But by the chemical modification, the Si-O bond is bonded to the cured products structure and thus the comprehensive performance of EP is improved.
Results and Discussion 2.1 Characterization of the structure of modified epoxy resin The FTIR spectra of A and B are shown in Fig. 1.
The introduction of polysiloxane results in increase of crosslink density and the segments distance of internal structure getting smaller than pure EP.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

This type of arrangement is referred to as a normal spinel structure [2].
Surface defects result in a magnetic spin glass structure.
The powder specimen is thus different to a bulk specimen because surface structure defects result in a magnetic spin glass structure.
The experimental value of the per molecular magnetic moment is lower than the theoretical value because surface structure defects result in a magnetic spin glass structure.
[7] J.S Jiang, L Gao and F.L Yang, The Seminary Chemistry Paper, 1, 3(1999).

According to the chiral resolution mechanism and structures of Pirkle’s chiral stationary phase (CSP), a new amide chiral selector base on pracoterol has been prepared in this thesis.
Introduction Nowadays, enantioselective separation covers an important area of analytical chemistry of relevance to a wide variety of scientific professionals.
Enantioselective separation on chiral stationary phases (CSPs) in high performance liquid chromatographic (HPLC) is essential in several research fields such as pharmaceutical, agrochemical, and food chemistry [1,2].
This results benefit from the molecular structure of pracoterol.
So the ring of pracoterol is indispensable, and chiral selector was based on compound 4 for structure modification.

The hydrolysis of the crystalline regions is weak, for that is regular structure and arranged closed.
Lujie [8] studied the structure of cellulose macromolecules of Reed pulp in the process of enzyme treatment.
Influence of enzyme dosage to fiber crystal structure.
In order to verify the above analysis, the crystal structure of enzyme treated fibers was determined.
Plant Fiber Chemistry.

The effect of different catalysts including stannous octoate (T-9) and dibutyltindalautrate (DBTDL) on the structure, surface properties and thermal properties of FPU was studied.
Their structure and characteristics have been extensively investigated mainly with reference to their application in medical devices [4].
In particular, the incorporation of fluorine into the polymer chain leads to larger changes in materials’ surface energy and phase-separated structure.
Results and Discussion Structure Analysis of the FPU.
Pure and Applied Chemistry Vol. 46 (2009), p. 215-221 [3] Ainara Saralegi, Lorena Rueda, et al.

China 2 Key Lab for Colloid and Interface Chemistry of the Ministry of Education, Shandong University, Jinan, Shandong, 250100, P.
China 3College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.
Its phase behavior and structure are investigated here.
So the compound PdS4 has the expectant structure as the Fig. 1 from the data hereinbefore [9].
The new organometallic liquid crystal PdS4, having novel structure characteristic, has metal coordination bond and ordered mesophase.

HCl may promote the strength of small pore structure and increase the pore shrinkage of large pore structure.
Consequently, the treatment of HCl does not only enhance the partial collapse of large pore structure, the treatment also increases the strength of small pore structure to inhibit the shrinkage of this structure during carbonization as well.
This may be because HCl treatment may promote the strength of small pore structure and increase the pore shrinkage of large pore structure.
Consequently, the treatment of HCl does not only enhance the partial collapse of large pore structure, the treatment also increases the strength of small pore structure to inhibit the shrinkage of this structure during carbonization as well.
The Physics and Chemistry of Sol-Gel Processing (Academic Press, New York, 1990).

Then the effect of different heat-treatment temperatures on the structure and properties of the films was studied.
The structure of the film heat-treated at 250°C has a compact structure, higher hardness, and the best wear resistance.
Fig. 1 indicates that the structure of the film is microporous oxide film.
So, the structure of the film heat-treated at 250°C has a compact structure, higher hardness, lower the friction coefficient, and good the wear resistance.
Materials Chemistry and Physics Vol. 82 (2003), p370

Synthesis and Crystal Structure Studies on 6-Amino-5,5,7- Tricyano-3,3a,4,5-Tetrahydro-2H-Indene-4-Spirocyclopentane Huan-Mei Guo1,a, Qian Wu2,b, Yu-Feng Li1,c 1 Microscale Science Institute, Weifang University, Weifang 261061, P.R.
China 2 Chemistry & Chemical and Environmental Engineering College, Weifang University, Weifang 261061, P.R.
China a huanmeiguo@163.com (Corresponding Author), b wuqianwq2006@163.com, cliyufeng8111@163.com Keywords: Synthesis, Crystal structure analysis, Malononitrile derivative Abstract.
The structure of the title compound was solved by direct methods and refined by full-matrix least-squares techniques on F2 using the SHELXTL [7] software package.
Obviously, these hydrogen bonds increase the stability of the crystal structure, and play an important role in the formation of 3D network structure (Fig. 2).

R.China, 410073. 2 Key Lab of Organic Optoelectronic and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, P.
The procedures of 3DOM structure preparation were characterized by transmission electron microscope (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD).
Subsequently, the samples were heated to 400 °C to form anatase TiO2 and to remove the polymer of template, which resulted in macroporous structure with a silica sphere in each lattice pore.
And then, the samples were calcined in oven at 400°C, the macroporous structure was obtained, and the titania was crystaled into anatase.
For the sake of comparison, the 3DOM TiO2 electrode (i.e. inverse opal structure) was fabricated in the similar process.