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Mangeron, 70050 Iasi, Romania 3Romanian Academy, “Petru Poni” Institute of Macromolecular Chemistry, 41 A Gr.
The composite materials have been evaluated in terms of dielectric properties and mechanical characteristics to take into account for the optimum materials structure.
This behavior is mainly due to the structure of amorphous/crystalline polymer material and natural structural discontinuities that allows migration of electrical charges in the interfacial area.
During this time the addition of wood dust affects the permittivity and tan (δ), which is mainly due to biphasic amorphous structure/crystalline polymer of natural structure that allows migration of electrical charges.
New research efforts will be concentrated in future towards realizing more tests, for a better structure of composite.

Influences of Particle Sizes on Properties of Natural Rubber/Waste Ground Rubber Powders Blends Junliang Liu a, Ping Liu, Xiaoqiang Tang, Dong Zeng, Xingkai Zhang, Wenpan Yang, Mingming Wang, Ming Zhangb* Key Laboratory of Environmental Materials and Engineering of Jiangsu Province, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R.China aliujunliang@yzu.edu.cn, blxyzhangm@yzu.edu.cn * Corresponding authors Keywords: Waste ground rubber powders, Particle sizes, Mechanical properties Abstract.
For the tensile strength relied on the integrality of the cross-linking structure, the obvious increases in the tensile strengths indicated that the cross-linking structures formed more completely as the WGRPs with smaller particle sizes.
The larger surface tensile and the releasing of the residue ingredients together led to accelerating the vulcanizing reaction to form 3D-net structures.
Moreover, the decrease of particle sizes also resulted in the homogenous re-distribution of the sulfur, which could effectively avoid the formation of “sea-island” structures from the excessive vulcanization in the local domains.
Fig.3 illustrated the elongations at break of the blends with WGRPs of different particle sizes, which demonstrated the similar changing trend to the tensile strengths and the highest value was about 530%, which confirmed the refined formation of the cross-linking structures.

R. of China 2 Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P.
Figure 1 showed the molecular structure of the SPI membrane.
Characterization of SPI-based IPMC The structure of SPI-based IPMC was characterized using SEM attached with EDS.
SEM attached with EDS was employed to examine the overall structure of the SPI-based IPMC and the distribution of metal particles along the membrane thickness.
The structure of the electro-active polymer and the distribution of metal particles in the membranes were examined by SEM attached with EDS.

In this study, SF formed porous structure during setting reaction of CPC.
Among them, the samples for investigation on surface morphology and structure were quenched in acetone for 3h to remove water and stop the setting reaction.
Mensuration of structure.
Structure of the hardening-body of composites.
Lu: Materials Chemistry and Physics Vol.88 (2004) , p.285

The Preparation, Structure and Electrical Conductivity of Ag-doped La1-x-ySrxCuyMnO3-δ (0.05≤x≤0.4, y=0.1) Ceramics Yi Cao, Baoping Lin*, Hong Yang, Ying Sun School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China lbp@seu.edu.cn Keywords: Sol–gel processes; X-ray methods; electric conductivity; Ag-doped La1-x-ySrxCuyMnO3-δ Abstract.
In this paper, we have presented a comprehensive study about the preparation, structure and electrical conductivity of Ag-doped La1-x-ySrxCuyMnO3-δ (0.05≤x≤0.4, y=0.1) ceramics.
The structure variation was systematically characterized by the X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM).
The lead-based compounds with the ABO3 perovskite structure have been widely used as outstanding electrical materials [5].
The structure refinement was carried out by the Rietveld analysis of the X-ray powder diffraction (Rigaku-D/max, Cu-Kα) with step length 0.01°.

The introduction of the different hydrophilic spacers into the present Schiff bases can lead to more flexible structures and new properties are expected.
The molecular structures and the abbreviations are shown in Fig. 1.
Chemical structures of Schiff base molecules.
Schematic illustration of structures of GN1/BA (left) and GN2/BA (right) complexes.
In order to further clarify the structures of the hydrogen-bonded complexes, we have measured the ESI-MS of the hydrogen-bonded complexes.

Introduction In some applications, the evaluate safety or the damage of structure and system had been Has been precise measurement by Ultrasonic waves.
Fiber optic sensors have been widely applied to the study of the chemical and physical structure of the sensor monitoring the safety.
Health monitoring for the attractive for large structures or complicated systems is ideally suited for using ultrasonic wave.
Huang: Fiber Optic Sensor Array for Multi-Dimensional Strain Measurement (1998), Smart Materials and Structures, vol.7, p.159-165 [2] J.J.
[3] N Takeda: Characterization of Microscopic Damage in Composite Laminates and Real-Time Monitoring by Embedded Optical Fiber Sensors(2002),International Journal of Fatigue, vol.24, p.281-289 [4] J.Lin: Recent Development and Applications of Optical and Fiber-Optic Ph Sensors, Trends in Analytical Chemistry, vol .19, p. 9(2000) [5] R.J.

Studied the structure and phase changes in graphite MPG-7 depending on time of mechanochemical treatment (MCT) in high-speed ball mill at different rotation frequencies.
Samples were subjected to particle size distribution, photon correlation spectroscopy, electron microscopy, diffraction the structure and phase and Raman spectroscopic analyses.
Structure of amorphous carbon obtained by the method of electric breakdown of hydrocarbon liquids.
Chemistry and chemical technology.
[7] Dozhdikov VS, Basharin A.Yu., Levashov PR Amorphous carbon, hardened from liquid carbon: structure and properties over a wide range of pressures.

Wright1,c 1 School of Chemistry, University of Birmingham, Edgbaston, Birmingham, UK. 2 Smith & Nephew, York Science Park, Heslington, York, UK.
The composition and structure of these materials was investigated by powder X-ray diffraction using a Siemens D5000 diffractometer (transmission mode with Cu Kα1 radiation).
This suggested that there was a change in structure upon the transition from pentyl to hexyl alkyl chains in these materials.
This hydrophobic nature is due to the presence of the alkyl chains in the structure.
These hybrid materials have been shown to possess a layered structure with hydrophobic bilayers of alkyl chains between the hydrophilic calcium phosphate layers.

Their structures were characterized by 1HNMR and IR.
The structure of N-acryloyl-L-alanine is shown in Fig.1.
The structure of N-acryloyl-L-alanine Fig. 2.
The structure of poly(N-acryloyl-L-alanine) The structure of the purified monomer was determined by 1H NMR and IR(KBr) spectra, which are well assign and show in Fig.3 and Fig.4 The FTIR spectrum of the monomer showed a peak at 3304 cm-1,which was assigned to the CONH groups and it is a single peak because the CONH is a secondary amide group.
J.The Royal Society of Chemistry 6(2010)3851-3855 [6] liang FENG, fa bao ZHAO, jiwen HU.