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Avoiding the influence of polymer chemistry, use ion beam sputtering deposition or magnetron sputtering method in the silicon surface depositing an inorganic planarization layer, the selection of planarization inorganic materials are mainly silicon-based. using ion beam sputtering deposition 50 nm silicon dioxide thin films on silicon wafer surface, then ion beam polishing, starting from 2.25 nm, roughness can be reduced to less than 0.2 nm.
Summary The 100 mm silicon wafers surface roughness after polishing is better than 0.2 nm (Rms), the cycle structure of defects silicon surface, the surface roughness after polishing is better than 0.6 nm (Rms).

Synthesis and Properties of 1-(3,5-dimethyl-4-isoxazole)-2-(2-methyl-(5-ethynyl) -3-thienyl)perfluorocyclopentene Meili Cai, Zhaoyan Tian, Shiqiang Cui* and Shouzhi Pu Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.R.China cuisq2006@163.com Keywords: Diarylethene; Photochromism; Fluorescent property; Kinetics.
The structure of compound 1o was confirmed by NMR.1H NMR spectra were recorded on Bruker AV400(400 MHz) spectrometer with CDCl3 as the solvent and tetramethylsilane as an internal standard. 1H NMR (400 MHz, CDCl3), δ (ppm): 1.95 (s, 6H), 2.14 (d, 3H, J = 8.0Hz), 3.3 (s, 1H), 7.14 (s, 1H).

Kinetics of Glyphosate Adsorption on Composite Resin from Aqueous Solution Zhenzhen Kong1, a, Dongmei Jia1,b and Suwen Cui1,c 1Department of Chemistry and Chemical Engineering, Binzhou University, Binzhou 256603, China akongzz@bzu.edu.cn, bjiadm2005@163.com, cCuisw@bzu.edu.cn, Key words: glyphosate; weakly basic resin; adsorption; kinetics Abstract: The composite weakly basic resin(D301Fe) was prepared and examined using scanning electron microscopy and Fourier transform infrared spectroscopy.
Fig. 1 The structure of the glyphosate.

The sensor comprises interdigital electrodes at the top of the structure and a block of electrode at the bottom, polyimide is used as sensing material sandwiching between the top and bottom electrodes, Al is used as the electrode materals, the up surface of the top electrodes is also spin-coating polyimide to enlarge contact area.
Gould, Ed., in Adv. in Chemistry Series, no. 102.

Nano-Cu/low-density Polyethylene Composites: Structure and Control Release of Cupric ions Yu Qiua , Hua Leib and Tao Xuc* College of Material and Metallurgy, Guizhou University, Guiyang, Guizhou 550025 China a379051023@qq.com, bleihua20051104@sohu.com, cxxlhtt@sina.com Keywords: Nano-Cu, Composites, Thermal stability, Release of Cupric ion.
And polymer chains, the gap of the material itself have micro and leaving the pore structure after nano-Cu reaction constituting the diffusion paths.
Patten, Preparation of structurally well defined polymer–nanoparticle hybrids with controlled/living radical polymerization , Journal of the American Chemistry Society , 121(1999) 7409–7410
Xiao, Control of pore structure in copper/low density polyethylene porous composites, Huazhong University of Science and Technology, 2013

Investigation of Coordination Interaction of Trigonal Schiff Base Compound with Zn(II) Ions in Organized Molecular Films Tifeng Jiao1,2 and Jingxin Zhou1 1Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei, 066004, China 2State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 730000, China Keywords: Trigonal Schiff base, Coordination, Zn(II) ion, Langmuir-Blodgett film, Supramolecular assembly, Spectral measurement.
The molecular structures and their abbreviations were shown in Fig. 1.
The structure of final product is shown in Fig. 1, abbreviated as C18TSB, which was confirmed by 1H NMR.
Chemical structure of trigonal Schiff base compound C18TSB.
The present work may give some insight to design and character the relationship between the molecular structures and supramolecular aggregation of amphiphiles in organized molecular films.

During the initial stage of the process, amorphous iron oxide produces globular structures which are around 200 nm in size.
With a continuous supply of iron (hydr)oxide, above process continues and sheet like structures are formed by connecting isolated globules (Fig. 3).
Once the sheet-like structures are formed, they cover up the surface of apatite, thus preventing iron oxide getting in contact with the apatite.
These iron phosphate globules join together to form sheet-like structures (top left) which are stable in this environment.
VanRaaphors: Marine Chemistry, 52, No.1, (1996). pp.55-73

Preparation of N- Ce Co-doped TiO2 Nanopaticles and Their Photocatalytic Performance under Visible Light Gui Hua Li 1,aand An Feng Wang2,b 1,2Faculty of Chemistry and Material, Langfang Teacher’s College, Langfang ,Hebei ,065000, China aliguihua_2002@163.com，bwanganfeng_2002@163.com Keyword：N-Ce co-doped TiO2 , Photocatalysis, Methylene blue degradation, Sol-gel Abstract.
These exothermic peaks are likely due to decomposition of resulting nano crystallite structures.
To investigate the phase structure of the main sample N0.4Ce0.06/TiO2 and undoped TiO2, XRD was used and the results are shown in Fig. 2.
The doped samples exhibit typical structure of TiO2 crystal without any detectable dopant related peaks.
This may be caused by the lower concentration of the doped species, and moreover, the limited dopants may have moved into either the interstitial positions or the substitutional sites of the TiO2 crystal structure.

The composition and structure of the products are determined by chromatographic and spectral analysis.
The structure of the synthesized products was determined by IR and 1H NMR spectroscopy.
In the 1H NMR spectra of the cyclic structure of compound {1}, δ = 1.35-1.6 ppm is observed in the band, and the CH3 group signal in the band δ = 0.9 ppm.
The structures of synthesized cycloalkyl imidazolines were confirmed by IR and 1 H NMR spectroscopy.
Global Journal of Chemistry. 2017.

Theoretical calculations have indicated that the fcc structure is more stabilized slightly [12].
Moreover, the higher evaporation temperature can lead to a preferential tendency towards stacking positions of fcc structures, which are well known as a thermodynamically stable crystalline phase [12].
The condensation of the surface silanol groups occurs above 200 °C [13], and brings about shrinkage of the structure.
The structure shrinkage is responsible for the shift of the PBG in this annealing temperature range.
Bergna: The Colloid Chemistry of Silica (Washington DC, ACS 1994). 300 400 500 600 700 Log(T) (a.u.)