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Online since: August 2021
Authors: Ojiyed Tegus, Ta Na Bao, Naren Gerile, Altan Bolag, Ying Zhang, Yi Feng Shi
This phenomenon is mainly caused by the structure of water in reverse micelles close to the structure of free water [9-11].
Moreover, as the concentration of the complex increases, the dissociated metal ions recombine with ligand ions to form an aggregated structure.
The dependence of the viscosity value on the water content is used to detect the high-order aggregation structure of the metal complex surfactant.
Whether the diversified structure is obtained is mainly affected by the molecular structure of the ligand, except for the influence of molecular water.
Chinese Journal of Organic Chemistry, 39(2019) 1953-1961
Moreover, as the concentration of the complex increases, the dissociated metal ions recombine with ligand ions to form an aggregated structure.
The dependence of the viscosity value on the water content is used to detect the high-order aggregation structure of the metal complex surfactant.
Whether the diversified structure is obtained is mainly affected by the molecular structure of the ligand, except for the influence of molecular water.
Chinese Journal of Organic Chemistry, 39(2019) 1953-1961
Online since: October 2013
Authors: Tonio Buonassisi, Torunn Ervik, Jasmin Hofstetter, Maulid Kivambe, Gaute Stokkan, Sergio Castellanos
Results and discussion
A: Ordered dislocation structures.
No precipitates were found in ordered dislocation structures.
The image shows dislocation structure in a portion of one of the arrays.
B: Disordered dislocation structures.
Evidence of precipitate decoration in the structures has been presented.
No precipitates were found in ordered dislocation structures.
The image shows dislocation structure in a portion of one of the arrays.
B: Disordered dislocation structures.
Evidence of precipitate decoration in the structures has been presented.
Fine Grain Portland Cement Concrete with Complex Nanodisperse Admixture for Structure Rehabilitating
Online since: August 2015
Authors: Grigory Ivanovich Yakovlev, Galina D. Fedorova, Gregory N. Alexandrov, Irina Sergeevna Polyanskikh, Igor Aleksandrovich Pudov
The influence of new complex nanodisperse admixture on structure and strength characteristics of fine grain concrete used in rehabilitation of damaged concrete structures has been studied.
It means that the complex admixture has a positive influence on forming the concrete structure.
In contrast, the studied concrete has a denser structure represented mainly with calcium hydrosilicates (Fig. 4 b).
The new complex admixture enables controlling the properties of concrete mixtures and concretes used to rehabilitate reinforced concrete structures in the process of rehabilitating buildings and structures.
Influence of ultrafine silica on hydration of Portland cement // Journal of Applied Chemistry. 2010.
It means that the complex admixture has a positive influence on forming the concrete structure.
In contrast, the studied concrete has a denser structure represented mainly with calcium hydrosilicates (Fig. 4 b).
The new complex admixture enables controlling the properties of concrete mixtures and concretes used to rehabilitate reinforced concrete structures in the process of rehabilitating buildings and structures.
Influence of ultrafine silica on hydration of Portland cement // Journal of Applied Chemistry. 2010.
Online since: September 2011
Authors: Ying Song, Xian Li Huang, Fu Ping Wang
Microstructure and Microwave Dielectric Properties of BaTi4O9 Ceramics Derived from a Sol-Gel Precursor
Xianli Huang1, a, Fuping Wang1,2, b and Ying Song2, c
1Department of Applied Chemistry, Nanjing University of Aeronautics and Astronautics, Nanjing, China
2Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
aXianlihuang@163.com, bfpwang@hit.edu.cn, csongy@hit.edu.cn
Keywords: Microwave dielectric ceramics; Microstructure; Titanate; Lattice vibration.
The crystal structure of sintered samples was examined by X-ray powder diffraction with monochromatic Cu Kα1 radiation (MO 3X HF Mac Science, Tokyo, Japan), as shown in Fig. 2.
The crystal structure of sintered samples was examined by X-ray powder diffraction with monochromatic Cu Kα1 radiation (MO 3X HF Mac Science, Tokyo, Japan), as shown in Fig. 2.
Online since: February 2014
Authors: Bao Xiang Deng, Yong Hui Lv
FTIR spectroscopy was used to verify the change in chemical structure of carbon nanotubes after acidification.
Polyimides: Materials, Chemistry, and Characterization: Proceedings of the Third International Conference on Polyimides, Ellenville, New York, 1988
Journal of Polymer Science Part A: Polymer Chemistry. 1997, 35(11): 2289-2294
Polyimides: Materials, Chemistry, and Characterization: Proceedings of the Third International Conference on Polyimides, Ellenville, New York, 1988
Journal of Polymer Science Part A: Polymer Chemistry. 1997, 35(11): 2289-2294
Online since: June 2014
Authors: Sakdiphon Thiensem, Rungsarit Koonawoot, Cherdsak Saelee, Sittiporn Punyanitya
Influence of composition and isothermal sintering on the properties of
hydroxyapatite bioceramic bodies
Rungsarit Koonawoot1,a, Cherdsak Saelee1,b, Sakdiphon Thiansem 2,c
and Sittiporn Punyanitya3,d
1Department of Physics and Materials Science, Faculty of Science, Chiang Mai University,
Chiang Mai, 50200, Thailand
2Department of Industrials Chemistry, Faculty of Science, Chiang Mai University,
Chiang Mai, 50200, Thailand
3Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
akoonawoot@yahoo.com, bcherdsak@chiangmai.ac.th, csukdipown@hotmail.com,
dpunyanitya.s@gmail.com
Keywords: Hydroxyapatite, Bioceramic, Solid state reaction, Sintering, Uniaxial pressing
Abstract.
The peaks at 1440-1740 cm-1 indicated the existence of a Ca-O phase in the structure of all samples at 800-1300 °C and the vibrational bands of OH- decrease because of TCP forming of HPO4 2- at 960 cm-1 and 1212 cm-1.
Segal, Chemical synthesis of advanced ceramic materials, Chemistry of solid state materials, vol. 1., Cambridge, Cambridge University Press, 1989.
The peaks at 1440-1740 cm-1 indicated the existence of a Ca-O phase in the structure of all samples at 800-1300 °C and the vibrational bands of OH- decrease because of TCP forming of HPO4 2- at 960 cm-1 and 1212 cm-1.
Segal, Chemical synthesis of advanced ceramic materials, Chemistry of solid state materials, vol. 1., Cambridge, Cambridge University Press, 1989.
Online since: December 2011
Authors: Jian Quan Li, Dan Mu
A Study of the Adsorption and Diffusion Behavior of a Single Polydimethylsiloxane Chain on a Silicon Surface by Molecular Dynamics Simulation
Jian-Quan Li1, a and Dan Mu2,b
1Photoelectric Engineering College, Zaozhuang University, Shandong 277160, China
2College of Chemistry Chemical Engineering and Materials Science, Zaozhuang University, Shandong 277160, China
ahuangxuri2008@yahoo.com.cn, bmudanjlu1980@yahoo.com.cn
Keywords: PDMS; Silicon surface; Two dimensional adsorption conformation; Scaling law
Abstract.
Before the MD simulations, energy minimizations are performed to relax the local unfavorable structure of the chain.
In addition, thanks for the support of the state key laboratory of theoretical and computational chemistry on the softwares.
Before the MD simulations, energy minimizations are performed to relax the local unfavorable structure of the chain.
In addition, thanks for the support of the state key laboratory of theoretical and computational chemistry on the softwares.
Online since: August 2010
Authors: A. Nag, C. Nah, G.B. Nando, Jobin Jose
Preparation and Characterization of Blends derived from Waste
Polypropylene and Crumb Rubber Powder
Jobin Jose1,3,a
, A Nag1,b
, G B Nando2,c
and C Nah3,d
Jobin Jose; (jobinjjm@gmail.com)
1
Dept. of Chemistry, Indian Institute of Tech., Kharagpur-721 302, India
2
Rubber Tech.
Because of the chemically dissimilar structure of crumb rubber powder and WPP, the blend is expected to exhibit two phases and hence not expected to give better results.
References [1] Zenkiewicz M. and Kurcok M.; Polymer Testing, 27, (2008), 420-427 [2] Awang M. and Ismail H.; Polymer Testing, 27, (2008), 321-32 [3] Rajalingham P. and Baker W E, Rubber Chemistry and Technology, 65, (1992), 908-916
Because of the chemically dissimilar structure of crumb rubber powder and WPP, the blend is expected to exhibit two phases and hence not expected to give better results.
References [1] Zenkiewicz M. and Kurcok M.; Polymer Testing, 27, (2008), 420-427 [2] Awang M. and Ismail H.; Polymer Testing, 27, (2008), 321-32 [3] Rajalingham P. and Baker W E, Rubber Chemistry and Technology, 65, (1992), 908-916
Online since: December 2011
Authors: Dan Qun Huo, Chang Jun Hou, Sheng Fang Chen, Ming Zhang, Xiao Gang Luo, Zhong Ming Lu, Wei Yin, Huan Bao Fa
Coordination Reaction Between Series Hydroxyl-Porphyrins and Pb2+ Studied by Spectroscopic Method
Fa huanbao1,2,a, Chen shengfang1, Zhang ming1, Huo danqun2, Yin wei1,
Luo xiaogang2, Lu zhongming2,3 and Hou changjun2
1College of chemistry and chemical engineering,Chong qing university,400030;
2Key laboratory of Biorheology Science and Technology of Ministry of Education .College of
Bioengineering,Chongqing university,400030;
3Corporation of Lu zhou old cellar,Lu zhou,Sichuan,646000
ahuanbaofa@163.com
Key words: hydroxyl-porphyrins, Pb2+, Soret band, thermodynamic properties
Abstract.
The structures of the porphyrin compounds and the schematic of reaction Instrumentations.
Environmental Chemistry.
The structures of the porphyrin compounds and the schematic of reaction Instrumentations.
Environmental Chemistry.