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Online since: February 2014
Authors: Min Li, Zhong Dong Zhang, Shuai Shao, Xiong Hou Gao, Dong Wang, Jian Jun Yin
The properties of the binders had remarkable influence on the pore structure of FCC catalysts.
SU, Effect of the binders on the pore structure of FCC catalysts, Industrial Catalysis, 9(2012): 51-55.
Sommerdijk, Sol-Gel Materials Chemistry and Applications, Gordon and Breach Science Press, Singapore, 2001, pp.20-22
Wang, Colloid and surface chemistry, Chemical Industry Press, Beijing, 2010,pp.111-112
Wright, sol–gel materials chemistry and applications.
Online since: December 2012
Authors: Hong Bo Liu, Feng Lin, Wu Ying Zhang
Synthesis and Characterization of Cyclic Carbonate from CO2 Wuying Zhang 1, a, Hongbo Liu 1,b and Feng Lin 1,c 1 School of Applied Chemistry and Biological Technology, Shenzhen Polytechnic, Shenzhen 518055, People’s Republic of China azhangwuying@szpt.edu.cn, blhb206@163.com, clfeng00@yahoo.com.cn Keywords: Carbon dioxide, cyclic carbonate, glycidyl methacrylate Abstract. (2-oxo-1,3-dioxolan-4-yl)methyl-2-methylprop-2-enoate (DOMA) was synthesized from glycidyl methacrylate (GMA) and carbon dioxide, which can be further polymerized into water-based non-isocyanate polyurethane(NIPU).
The structure of DOMA was characterized by IR spectra, 1H-NMR and 13C-NMR analysis.
A feasible synthetic method of producing DOMA using CO2 is presented hither, and the goal of green chemistry is well met.
Online since: May 2011
Authors: Chang Zheng Zheng, Liang Wang, Juan Liu
The crystal structure was determined by single-crystal X-ray diffraction.
Its crystal structure was determined and refined to a final R= 0.0304 for 8902 independent reflections.
There are two structural types in nickel complexes with hydrazone: mononuclearl[8,9] and dinuclear structures[10].
Herein we report the synthesis and structure of a mononuclear nickel complex [(C5H5N)Ni(C15H11N2O2Br)].
John: Lang's Handbook of Chemistry (1998), p. 39 [15] S.L.
Online since: October 2011
Authors: Bao Hui Li, Bao Juan Tian
Chiral Separation of non-natural carboxylic amino acid by Capillary Electrophoresis with CD Derivations as Chiral Selective Material Li Bao-Hui1, a, Tian Bao-Juan2,b 1College of Environmental Science & Engineer North China Electric Power University, No. 619 Yonghua North Street, Baoding, 071003, China 2Department of Chemistry, Baoding College, Baoding, 071000, China atbj2001@163.com, bbaohuilee@gmail.com Keywords: Keywords: Capillary electrophoresis, isomer separation, chiral selective material, non-natural, carboxylic amino acid Abstract.
Four kinds of racemes of α-methylamino acids isomer were provided by Institute of Chemistry, Chinese Academy of Science.
The structure of four kind of α-methylamino acids was shown in figure 1. β-CD was purchased from Shanghai Chemical Reagent Co., Ltd.
Working solutions were prepared by stepwise diluting the stock solutions with DDW just before use. 4-(N-methyl) methylamine phenylacetic acid 4-(N-methyl) methylamine -p- F - phenylacetic acid 4-(N-methyl) methylamine -p- Br - phenylacetic acid 4-(N-methyl) methylamine -p- methyl - phenylacetic acid Figure 1 The structure of several non-natural amino acids.
Online since: July 2011
Authors: Xiao Jing Wang, Hui Han, Qi Heri Ma, Li Lv
Preparation and Grain Growth Kinetic of Nickel Oxide Nano-particles Hui Han1, Qiherima1, Li Lv1, Xiaojing Wang1,a,* 1College of Chemistry and Chemical Engineering, Inner Mongolia University, huhehaote city,010021, P.R.
NiO usually exists in the chlorine nickel pyrite type with a cubic crystal structure in nature.
It is also a well-behaved p-type semiconductor due to its inherent defect structure[5].
Avendano: Journal of Physical Chemistry C.
Online since: July 2011
Authors: Huan Yu Jin, Hua Yin, Yan An
The mechanical properties, structures, and thermal stability of these materials were not affected obviously.
Conclusion The radiation technique as a better effect, less pollutions, less dwellings, longer-term effective method, has been found to be widely applicable in the sterilization for medical biomaterials and medical devices, modifying the structure and properties of polymers.
Uskokovic: Radiation Physics and Chemistry Vol. 76 (2007), p. 722 [11] D.S.
Strain: Radiation Physics and Chemistry Vol. 76 (2007), p. 1676 [17] Z.H.
Online since: January 2015
Authors: Jin Ping Song, Qi Ma, Shao Min Shuang, Chuan Dong, Yong Guo
Synthesis and characterization of graphene–Cu nanocomposites by one-pot solvothermal approach Qi Ma1,2,a,Jinping Song1,b, Shaomin Shuang2,c,Yong Guo1,d and Chuan Dong2,e* 1 Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China 2 College of Chemistry and Environmental Engineering, institute of the applied chemistry, Shanxi Datong University, Datong, Shanxi 037009, China amaqihx@163.com; b songjphx@163.com; c smshuang@sxu.edu.cn; d ybsy_guo@163.com; edc@sxu.edu.cn Keywords: graphene oxide;graphene-Cu nanoparticles;ethylene glycol Abstract.
Raman spectroscopy is a powerful non-destructive tool to discriminate ordered and disordered carbon structure.
In addition, peak at 2θ = 42.98◦ represented (111) plane of fcc crystal structures of Cu nanoparticles.
Online since: January 2012
Authors: Ping Hao Zhang, Xin Yue Wu, Jiang Gui Han
Finite Element Model of rubber - metal ring Rubber - metal ring makes the structure and axial load cell can be applied to axisymmetric simulation.
In order to affect the radial load and post-processing, the selection of the grid,structure 1/2, along the radial axis direction of symmetry, as shown in Fig.1, namely, the x-axis.
Rubber Chemistry and Technology.
[5] Gent A N and Wang C.Strain energy release rates for crack growth in an elastic cylinder subjected to axial shear[J].Rubber Chemistry and Technology,1993,66:712-732
Online since: August 2021
Authors: Oleg V. Klukvin, Anastasia K. Savchenko, Alibagand O. Alibagandov
Hagiwara, A new structure model of graphite oxide, Carbon. 26(3) (1988) 357-361
Seigie, Structure and thermal properties of poly(ethylene oxide) -intercalated graphite oxide, Carbon. 35(1) (1977) 113-120
Nikolskaya et al., On the formation of graphite bisulfate in systems containing graphite, H2SO4 and an oxidizer, Journal of General Chemistry. 59(12) (1989) 2653-2659
Buraya, Investigation of the process of graphite oxidation by a solution of potassium bichromate in sulfuric acid, Chemistry of Solid Fuel. 1 (1990) 123-127.
Online since: May 2011
Authors: Yue Long Liu, Gou Sheng Liu
Crystalline Transformation of Ammonium Polyphosphate from Intermediate APP-X to APP-II Yuelong Liu1,a, Gousheng Liu 1,2,b 1College of Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China 2 State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China a lylgyx@163.com, bgsliu@ecust.edu.cn Keywords: Crystalline form; Ammonium polyphosphate; Crystalline transformation.
As shown in table 1, XRD patterns of APP-X1-3 by different process are similar, it can thus be assumed that APP-X may be a relatively stable structure, once similar reaction condition can be achieved, similar APP-X can be expected.
The five strongest intensity peaks of synthesized APP-X-II and JLS APP-II APP-X-II APP-II in JLS APP-II d/Å 2θ/º I/% d/Å 2θ/º 5.60 14.76 46.2 14.70 39.4 5.68 15.58 100 15.54 100 3.41 26.10 42 26.12 28.3 3.06 29.20 32.8 29.14 30.7 2.91 30.66 26.6 30.62 16.2 Table 2 shows that corresponding 2θ data of APP-X-II are similar with those of JLS APP-II, meaning temporary APP-X-II is somewhat like crystalline structure of JLS APP-II.
Journal of Agriculture and Food Chemistry, Vol. 24,(1976), p.412. 12 D.