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Study on influence of polyethylene glycol on dispersion of pyrite powder in aqueous solution Dan Li1,2,a, Zhou-lan Yin1,b and Qi-yuan Chen1,c 1 Key Laboratory of Resource Chemistry of Non-ferrous Metals, Ministry of Education, School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China 2 College of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410114, China aemail: ld1004@126.com, bemail: yzllxh@gmail.com, cemail: cqy@mail.csu.edu.cn Keywords: Pyrite powder; Polyethylene glycol; Dispersion; Wettability Abstract.
Introduction As an effective approach to the substitutes of petroleum, direct coal liquefaction technology is of great significance to solve the petroleum resource shortage, balance the energy structure, and ensure the energy safety and economic persistent development.
Liu, in: Pysical Chemistry, Higher Education Press, Beijing (2001)

Lithium manganese oxide on nanometer scale with a spherical structure different from that of the normal spinel is formed after explosion wave treatment due to the very high quenching rate.
Bao, in: Applied Thermal Chemistry, p. 94, East China Institute of Chemical Engineering Press (1989) [9] J.
Akhavan, in: The Chemistry of Explosives, p. 103, The Royal Society of Chemistry (1998) [10] B.H.
Su: Materials Chemistry and Physics, Vol. 69 (2001), p. 236 [12] J.B.

The Photocatalytic Degradation of Methomyl over TiO2 Nanopowder Prepared by the Low Temperature Solvothermal Route Pusit Pookmanee1,2,3,a*, Isara Phiwchai1,2,b, Sorachon Yoriya4,c, Ratchadaporn Puntharod1,2,d, Supaporn Sangsrichan1,2,e, Jiraporn Kittikul1,2,f, and Sukon Phanichphant2,3,g 1Department of Chemistry, Faculty of Science, Maejo University, Chiang Mai, 50290, Thailand 2Nanoscience and Nanotechnology Research Laboratory (NNRL), Faculty of Science, Maejo University, Chiang Mai, 50290, Thailand 3Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand 4National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Pathumthani, 12120, Thailand a*pusit@mju.ac.th, bphiwchai.i@gmail.com, csorachy@mtec.or.th, dratchadaporn_p@mju.ac.th, esupaporn-s@mju.ac.th, fkitikul_j@hotmail.com, gsphanichphant@yahoo.com Keywords: Photocatalytic, titanium dioxide, low temperature solvothermal route
Single phase anatase structure was obtained without calcination step.
TiO2 nanopowder was obtained without calcination step and the structure confirmed with the Joint Committee on Powder Diffraction Standards (JCPDS) Card File No.21–1272 [13].
Single phase anatase structure of TiO2 nanopowder was obtained without calcination step and compared with the Joint Committee on Powder Diffraction Standards (JCPDS) Card File No.21–1272 [13].
Acknowledgment This research was supported by the National Science and Technology Development Agency (NSTDA) the Young Scientist and Technologist Programme grant (YSTP: SP55–MT14), National Research Council of Thailand (NRCT) and the Department of Chemistry, Faculty of Science.

Synthesis of Polystyrene-b-Poly(ethylene oxide)monomethyl ethermethacrylate Block Copolymers and its Self-Assembly in Aqueous Solution Qianqian You a,Puyu Zhangb Institute of Fine Chemistry and Engineering, College of Chemistry and Chemical Engineering, Henan University, China P.R.,475004 ayouqian710@yahoo.com.cn, bzhangpuyu@henu.edu.cn Keywords: RAFT; copolymers; self-assembly.
The main factors responsible for it are that: many polymerization monomers, mild reaction conditions, controllable structures and so on.
Graeme Moad, Ezio Rizzardo, San H.Thang have given the detailed review about RAFT polymerization mechanism, influence factors and the structures [2,3].
Along with the increase of the quantity POEOMA, a spherical core-shell structure gradually reveals, and when POEOMA chain length is longer than PSt chain length , the shell layer is thicker than the core layer.

Synthesis and Characterization the Intercalation Compound of SnS2-Ethylenediamine by Hydrothermal Reaction Qing Lv1,a, Caixia Li1, Danyu Jiang2, and Qiang Li1,b 1Department of Chemistry, East China Normal University, Shanghai 200062, China 2Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China a51090606010@ecnu.cn, bqli@chem.ecnu.edu.cn (Corresponding author) Keywords: Tin disulfide; Ethylenediamine; Intercalation Compound; Hydrothermal.
Introduction Tin disulfide has hexagonal layered structure, each layer is bounded by the weak van der Waals force.
In the Fig.1.a, all of the diffraction peaks of the SnS2 are clearly observed in this figure and the XRD pattern is indexed as the pure hexagonal SnS2 structure in good agreement with the reported data (PDF card 23-0677).
Its good layered structure can be seen by transmission electron microscopy.
González-Elipe, Synthesis and Characterization of Diamine Intercalation Componds of SnS2 Single Crystals, Journal of Solid State Chemistry. 150 (2000) 391-398

The overall functional structure of GIS platform is show in Fig: 1.
Fig: 1 The overall functional structure of GIS platform The overall structure of provincial geographic data and data services platform consist of Infrastructure support layer, data layer, data management layer, services layer, application layer, and access layer.
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)

Study on the Nano Material procduced by Diisopropylamine or n butyl alcohol as Exchange Solvent Lin MEI1, a, Hun-yan PENG 2, Shi-yuan SONG 1, Yu-hong SUN 3, Qi-tao LIU 1, Ke ZHANG 4, Yong-gang SHI 1, 5 1 Department of petro-chemistry, LEU of PLA, Chongqing 400016, China; 2 Chemical examination oil training, Guangzhou military, Hunan 410025, China 3 Department of basic, LEU of PLA, Chongqing 400016, China; 4 Foreign language college, Chongqing University, Chongqing 400044, China; 5 Hanyin Oil Depot, Shan’xi 725100, China a email:meilin_cq@126.com Keywords replaced drying solvent; exchange solvent; nanoparticle; aerogel Abstract :The technology of producing nano material by diisopropylamine as a replaced drying solvent has been studied．The products of Al(OH)3 and SiO2 are found to be amorphous aerogel．The nano particle of TiO2 produced by it is found to be smaller than that produced by n-butyl alcohol as a replaced drying Solvent．
Solvent surface tension is very low, so Distillation drying process of gel structure does not collapse.
Result and discussion 2.1 Stack density analysis We can find it from table 1 that nano material stack density produced by n butyl alcohol is Superior to that produced by diisopropylamine[1], because nano material stack density produced by butyl alcohol is markedly small than that by diisopropylamine, surface tension between butyl alcohol and diisopropylamine, and interfacial tension between butyl alcohol and water, it can be seen in table 2, we can find that tension while diisopropylamine used as exchange solvent should be small than that tension while butyl alcohol used as exchange solvent, on the contrary, its result is different with that of table 1, That may be the reason for: displacer adopted in the experiment is diisopropylamine instead of dipropylamine, difference between The two molecular structure may cause rising of diisopropylamine surface tension and interfacial tension; diisopropylamine show alkalinity, butyl alcohol can think of expression of neutral.
Due to the significant increase of drying temperature, particle significantly enlarges. 2.3 Crystalline structure Fig4 Nano TiO2XRD spectrum It can be seen from a X-ray diffractometer spectrum between Al(OH)3 and SiO2 that there is no obvious diffraction peak of prepared Al(OH)3 and SiO2, this is the typical characteristic of amorphous material[3].
[5] WANG Dong-Zhi,《The third national granule preparation and Processing Symposium, China Institute of particles》，Qingdao，NOV.,1992,P26 [6] ZHANG Qi-Chao，Huaxue Tongbao(Chemistry),1989,4,31

New type of IF cold-rolled high strength steels (HSSs) with the strength level of 390 and 440MPa have been developed under the chemistry of the extra-low carbon steel containing around 60ppm C with an intentional addition of niobium by hybridizing the precipitation hardening with niobium carbides and the supplemental solid-solution hardening.
This structure leads to unique mechanical properties such as lower yielding and superior anti-secondary-work embrittlement under fine grain structure strictly required for the exposed panels in Body-in-White.
In the new grain-refined IF-HSS, as shown in Fig. 1, the carbon content in steel is three times as mush as that in the conventional IF steel, and niobium is added over the atomic equivalent content to carbon, which leads to not only attribute to the interstitial free chemistry in steel but also to disperse the higher amount of fine niobium carbides.
Although the correlation between mean r-value and grain size No. in case of Steel A corresponds to that of titanium bearing IF steel, Steel B with fine grain structure exhibits the more desirable relationship between mean r-value and grain size than the conventional IF steels in view of practical application.
The niobium carbides in the chemistry of Steel B must be fully precipitated after the hot-coiling at 640ºC according to the solubility of niobium carbide in ferrite derived by Turkdogan[4].

Bairro Pampulha, Belo Horizonte, MG, Brazil arosemary.sales@uemg.br, bfrancoartedesign@gmail.com, cnelcy@qui.ufmg.br, dteresa@ufmg.br Keywords: Corrugated cardboard, physical characterization, mechanical chemistry, microstructural analysis, furniture design.
Jones: Composite Structures Vol. 92 (2010), p. 2525
On-line measurement of paper mechanical properties. the institute of paper chemistry, appleton, wisconsin. ipc - Technical Paper Series, number 91. jan, 1980
Carlssonb: Composite Structures Vol. 39 (1-2) (1997), p. 93
Nordstrand: Composite Structures Vol. 63 (2) (2004), p.189

As a consequence, a similar defect (and thus, trap) structure can be assumed in the investigated samples.
Bao, Nature chemistry 5, 1042 (2013)
Yang, Inorganic chemistry 53, 11289 (2014)
Yamamoto, Materials Chemistry and Physics 120, 421 (2010)
Kon’kov, Journal of Electroanalytical Chemistry 600, 217 (2007)