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Polymer design, by exploiting the variation in structure of both diol and di-isocyanate monomers, such as backbone structure and presence of functional groups, appears to be a promising biopolymer engineering pathway to synthesize polyurethanes.
Polyurethane chemistry is extensive and well developed.
Product design through varying the structure of both diol and iso-cyanate monomers such as backbone structure and presence of functional groups, appears to be a promising polymer engineering pathway.
The description above showed all spectra that represent the structure of those polymers.
Beside that, modification of the polymer backbone structures carried out during this research leads to some interesting structures of the polymers.

It was shown that the samples sintered in nitrogen contained no impurities with cubic spinel structure.
The diffraction line of the sample sintered in nitrogen has single-phase spinel structure which indicates that the samples sintered in nitrogen have cubic spinel structure and do not have impure peaks.
Fig. 7 Hysteresis loops of the samples Conclusion Sintering in nitrogen produced pure Mn0.49Zn0.48Fe2.06O4 ferrite samples with cubic spinel structure, whereas the samples sintered in air or mixture of air and nitrogen contained oxides such as Fe2O3, Mn2O3 and ZnO.
Kadam: Journal of Physics and Chemistry of Solids Vol. 71 (2010), p.1669 [11] M.G.

Atomic force microscope (AFM) is widely used for nanoscale morphology characterization and submicron scale structure material, simple sample preparation is its advantage [2].
Surface engineering technology has became a comprehensive subject involving materials science, tribology, surface physics, chemistry, mechanics, material failure and protection, corrosion and protection, optoelectronics.
Figure1 Gauge head structure of AFM Fig.2 3 d original picture of sample A Fig.3 3 d original picture of sample A Measurement system AFM probe has high horizontal resolution, widely used in measurement and characterization of 2 d, low height of 3 d standard sample.
The probe of atomic force microscope measuring head we used produced by the brooke company , measuring head consists of force detection, position detection part, feedback system and atomic force probe, the structure is shown in Figure 1 [7].
In order to obtain better measurement structure and ensure that the sample is not damaged, experiments should be AC model to make basic observation [8].

XRD analysis reveals that the Zn1-xNixS (x= 0.00 and 0.01) nanoparticles crystallized in zincblende structure.
The diffraction peaks of undoped and Ni doped ZnS nanoparticles can be indexed to cubic zincblende structure of ZnS which are in good agreement with standard JCPDS file for ZnS.
Undoped and doped ZnS nanoparticles are in cubic structure.
References [1] Z.L.wang, Characterizing the Structure and Properties of Individual Wire-like Nanoentities, Adv.
[2] J.Hu, T.W.Odom, C.M.Lieber, Chemistry and physics in One-Dimension: Synthesis and properties of nanowires and nanotubes, Acc.chem.Res. 32 (1999)435-445

By investigating the structure of the ground product by SEM, XRD and FT-IR, the mechanism of mullite formation is discussed.
Its average structure is composed of structural basics, including octahedral [AlO4] and tetrahedral [SiO4] according to certain rules.
A notable change can be observed in the diffraction peak intensity of the mixtures between un-milled samples and samples milled for 30 h, as a consequence of the loss of crystal structure produced by the distortion and accumulation of defects in the structure.
In the effect of mechanochemical method, The crystal structure of mixture is collapsed into a disordered structure, which increases with increasing grinding time.
Kojima: Materials Chemistry and Physics Vol. 82(2003), p.831–836

The structure of product was characterized by gas chromatography, infrared spectroscopy, mass spectrometry, and nuclear magnetic resonance.
[7] Masaaki Yoshifuji, Fumito Hanafusa and Naoki Inamoto: Chemistry Letters Vol. 6 (1979), p. 723-726
Boustany: Journal of Chemistry of the U.A.R.

The Preparation of Pore-size Controlled Mesoporous Silicas by Biodegradable Diblock Copolymers Jeong Ho Chang 1,* Kyung Ja Kim 1 and Young-Kook Shin 2,* 1 Korea Institute of Cramic Engineering and Technology, Seoul 153-801, Korea 2 Department of Chemistry, Chungbuk Natioanl University, Chungbuk 361-703, Korea 1 jhchang@kicet.re.kr , 2shinyk@trut.chungbuk.ac.kr Keywords: Block copolymers; Polymers; Micelles; Nanocomposites; Templates; Solid-state structure; Ring-opening polymerization; Self-assembly.
The worm-like pore structures are obtained from the longer hydrophilic and hydrophobic chain length due to the size of micelle structures.
Based on the hydrophilic domain, the shorter domain in block copolymer gives a sophisticated pore-structures rather than the larger domain.
Until now, there is few of report on the preparation of the ordered nanoporous materials through the micelle structure mentioned the exact relationship between micelle and formed pore-wall structures.
Nanostructures obtained are very stable for the thickened wall structures.

Tomašević-Čanović3 1 Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, P.O.
The adsorption capacities of all organic cations followed the order of CLI>CaY>CaX>CaA>NaY>NaX>NaA and increased with the increase of Si/Al molar ratio in zeolite structure.
Zeolites, due to their high surface area, ion exchange capacities, variety of structures, pore size and possible functionalization, are promising materials for pesticide elimination.
Fenitrothion adsorbed on the surfactant-modified synthetic zeolites retained its structure.
Olson: Zeolites-Special Issue: Atlas of Zeolite Structure Types Vol. 12 (1992), p. 449

The Preparation and Properties of Seawater Purification and Resource Recycling Function Materials Qi Huanga, Wei Mab and Mei Hanb Department of Chemistry, Dalian University of Technology, Dalian, Liaoning, 116025, China ahuangqi3021769@126.com, bchmawv@yahoo.com Keywords: Seawater purification, Degradation of oil, Phenol, Lithium, Manganese oxide Abstract.
The characteristics showed that the manganese oxide was pure spinel structure and about 100 nm in length.
It shows that they are pure spinel structure [4].
The manganese oxide was the spinel structure.

Scanning electron microscopy (SEM), Optical microscope and X-ray diffraction (XRD) were used to observe the morphology, crystallinity, and chemical composition of the CuO structures.
So far, numerous nanostructured CuO with different morphologies have been fabricated, such as nanodendrite like[1], nanoshuttle, nanorods and flowerlike. [2]These various CuO structures have been synthesized by a number of different methods, such as hydrothermal synthesis, thermal evaporation, molecular beam epitaxy, chemical vapor deposition.
The bubbles were break up and some further SEM images (fig. 4b) of egg shell-like structure with 1-20μm diameters confirmed the process of bubbles break up at 350˚C for 5 min.
Acknowledgements This work was financially supported by the China Natural Science Foundation (20671070) and Tianjin Key Subject for Materials Physics and Chemistry.