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Online since: June 2013
Authors: Cheng An Tao, Yan An Lv, Ling Qiang Meng, Hui Ping Liu, Hui Zhu, Zhi Hong Hu, Jian Fang Wang
China.
2 College of Chemistry and Chemical Engineering, Hunan Normal University,
Changsha, 410081, P.R.
XRD results reveal that the self-assembled disk-like NCPs exhibit long-range ordered structures.
Fig. 1 Molecular structures of ligand Na2L.
The discus NCPs exhibit long-range ordered structures, as revealed by the reflections in the 2θ range from 5o to 50o as shown in Fig. 2.
The exact crystal structures of the NCPs will be explored in further work.
XRD results reveal that the self-assembled disk-like NCPs exhibit long-range ordered structures.
Fig. 1 Molecular structures of ligand Na2L.
The discus NCPs exhibit long-range ordered structures, as revealed by the reflections in the 2θ range from 5o to 50o as shown in Fig. 2.
The exact crystal structures of the NCPs will be explored in further work.
Online since: May 2020
Authors: S.M. Aksenova
How Formula and Technology Affect the Generation and Improvement in the Porous Structure of Foam Concrete
S.M.
This paper dwells upon the general patterns in creating a porous structure in a material: foaming, aggregate grouting.
Many technical properties of lightweight-concrete products and structures, in particular their durability, greatly depend on the concrete structure that emerges when concrete is cured and used.
Ekserova, Foam and foam films, M.: Chemistry, 1990, 432 p
Chem, Sciences: 02.00.04, Institute of Chemistry and Chemical Technology SB RAS, Krasnoyarsk, 2001, 20 p
This paper dwells upon the general patterns in creating a porous structure in a material: foaming, aggregate grouting.
Many technical properties of lightweight-concrete products and structures, in particular their durability, greatly depend on the concrete structure that emerges when concrete is cured and used.
Ekserova, Foam and foam films, M.: Chemistry, 1990, 432 p
Chem, Sciences: 02.00.04, Institute of Chemistry and Chemical Technology SB RAS, Krasnoyarsk, 2001, 20 p
Online since: April 2016
Authors: Yong Ke, Xiao Yong Hu, Jin Cui, Zhi Yuan Lin, Ming Jun He, Yu Qing Xu
Introduction
In recent years, to accurately design the molecular weight of the polymer, the structure and function has caused great concern in the field of polymer chemistry[1-3], through the living polymerization technique.
Nature Chemistry,2009,1:276-288
Journal of American Chemistry Society,1995,117(20):5614-5615
Effect of ligand structure on activation rate constants in ATRP[J].
Journal of the american chemistry Society,2008,130(32):10702−10713
Nature Chemistry,2009,1:276-288
Journal of American Chemistry Society,1995,117(20):5614-5615
Effect of ligand structure on activation rate constants in ATRP[J].
Journal of the american chemistry Society,2008,130(32):10702−10713
Online since: April 2021
Authors: Yuriy Velyaev, Ilona Kometiani, Olga Miroshnichenko
Varying the synthesis conditions will allow the desired catalytic structure to be obtained.
In particular, several large objects are visible in the central part of the photograph, differing from the rest of the structures by their large size and extended irregular shape.
Russian Journal of Applied Chemistry.
Rustamov, Isomerization of n-butane on dealuminated mordenite promoted with zirconium dioxide, Russian Journal of Applied Chemistry.
Belostotskii, Zr- and La-containing Catalysts in Synthesis of Methanol and Dimethyl Ether, Russian Journal of Applied Chemistry.
In particular, several large objects are visible in the central part of the photograph, differing from the rest of the structures by their large size and extended irregular shape.
Russian Journal of Applied Chemistry.
Rustamov, Isomerization of n-butane on dealuminated mordenite promoted with zirconium dioxide, Russian Journal of Applied Chemistry.
Belostotskii, Zr- and La-containing Catalysts in Synthesis of Methanol and Dimethyl Ether, Russian Journal of Applied Chemistry.
Online since: March 2014
Authors: Prans Brazdausks, Nikolajs Vedernikovs, Maris Puke, Irena Kruma
It means that the structure of biomass is changed and it might be more accessible for enzymes in the further enzymatic hydrolysis process in the bioethanol production.
Jacobs, Furfural and derivatives, in Ullmann’s Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH Verlag GmbH & Co.
Zeitsch, The chemistry and technology of furfural and its many by-products, first ed., Amsterdam: Elsevier Science, 2000
Zakis, Basics of wood chemistry.
Riga: Latvian State Institute of Wood Chemistry, 2008.
Jacobs, Furfural and derivatives, in Ullmann’s Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH Verlag GmbH & Co.
Zeitsch, The chemistry and technology of furfural and its many by-products, first ed., Amsterdam: Elsevier Science, 2000
Zakis, Basics of wood chemistry.
Riga: Latvian State Institute of Wood Chemistry, 2008.
Online since: November 2013
Authors: Pei Jiang Pan
Nowadays, the buckling restrained braces (BRBs) are used in higher structures being dissipation energy components.
Secondly, a single degree of freedom analyses model which is suitable to the frame structure is proposed.
Engineering Structures, Vol.26 (2004) p.693.
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)
Secondly, a single degree of freedom analyses model which is suitable to the frame structure is proposed.
Engineering Structures, Vol.26 (2004) p.693.
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)
Online since: January 2013
Authors: Li Hong Xue, You Wei Yan, Mi Fang Yan
The crystal structure and luminescent properties were investigated.
The crystal structure and luminescent properties were investigated.
The co-doped Eu3+ and B3+ have little influence on the host structure.
Yan, et al: J Chin Funct Mater(in Chinese), Vol. 37(2006), p. 1372 [5] Inorganic Chemistry Department of Tianjin University: Inorganic Chemistry (Second Edition), Beijing: Higher Education Press( 1992)
Liebau, in: Structural chemistry of silicates: structure, bonding, and classification, Berlin and New York: Springer-Verlag(1985)
The crystal structure and luminescent properties were investigated.
The co-doped Eu3+ and B3+ have little influence on the host structure.
Yan, et al: J Chin Funct Mater(in Chinese), Vol. 37(2006), p. 1372 [5] Inorganic Chemistry Department of Tianjin University: Inorganic Chemistry (Second Edition), Beijing: Higher Education Press( 1992)
Liebau, in: Structural chemistry of silicates: structure, bonding, and classification, Berlin and New York: Springer-Verlag(1985)
Online since: December 2014
Authors: Qing Ju Liu, Zhong Qi Zhu, Qin Zhu, Yu Min Zhang, Jin Zhang
The patterns indicate that the structure of MIPs is orthogonal perovskite, which include only one phase of LaFeO3.
Nilsson: Analytical Chemistry, Vol. 75 (2003) No.23, p.6608
Mosbach: Analytical Chemistry, Vol. 70 (1998) No.14, p.2789
Kimura: Analytical Chemistry, Vol. 72 (2000) No.11, p.2418
Haupt: Analytical Chemistry, Vol. 75 (2003) No.17, p.376A
Nilsson: Analytical Chemistry, Vol. 75 (2003) No.23, p.6608
Mosbach: Analytical Chemistry, Vol. 70 (1998) No.14, p.2789
Kimura: Analytical Chemistry, Vol. 72 (2000) No.11, p.2418
Haupt: Analytical Chemistry, Vol. 75 (2003) No.17, p.376A
Online since: January 2013
Authors: Xiu Li Wu, Ya Cui Guo, Pi Xin Wang
Preparation and characterization of graft copolymer of acryloyloxyethyl-trimethylammonium chloride and starch
Xiuli Wu1, a, Pixin Wang 2, b , Yacui Guo3,c
1 College of Biological Science and Technology, Changchun University, Changchun, Jilin 130012, China;
2 Polymer Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China
3The Secondary Vocational School of Quality and Technical Supervision , Changchun, Jilin 130022, China
accwxl0323@sina.com, bpxwang@ciac.jl.cn , cjsjd-gyc@163.com
Keywords: ammonium persulfate; corn starch; acryloyloxyethyl-trimethylammonium chloride (DAC); graft copolymerization; structure
Abstract.
Structures of the graft copolymers were characterized by FTIR, scanning electron microscope (SEM) and thermo-gravimetric/differential thermal analyze (TG-DTA).
The native starch surface is relatively smooth and its particle structure kept distinctly intact.
However, the aggregation structure graft starch is different completely, the particle size increased significantly.
Food Chemistry. 106 (2008) 923-928
Structures of the graft copolymers were characterized by FTIR, scanning electron microscope (SEM) and thermo-gravimetric/differential thermal analyze (TG-DTA).
The native starch surface is relatively smooth and its particle structure kept distinctly intact.
However, the aggregation structure graft starch is different completely, the particle size increased significantly.
Food Chemistry. 106 (2008) 923-928
Online since: April 2012
Authors: Zi Li Liu, Qian Wen Dai, Cui Xia Xu, Chao Xiang, Jian Jie Zhang
The results indicate that the Keggin structure of HPW is intact in the SiO2-supported HPW and SiO2-supported CsHPW.
Primary Keggin structure of bulk as well as supported HPW and CsHPW catalysts were confirmed by FT-IR analysis with a Perkin Elmer Spectrum 100 FT-IR Spectrophotometer. 2.3 Probe Experiment TH (99%) and 1-hexene (98%) were used as purchased (Aladdin Chemistry Co.
Bulk HPW hexahydrate is characterized by its cubic structure as shown in (Fig.1a) in diffraction lines.
The well-defined Keggin structure of heteropoly-anions is kept in the crystalline of CsHPW.
Even the amount of the CsHPW of loading is very high, the peaks of Keggin structure are still not strong.
Primary Keggin structure of bulk as well as supported HPW and CsHPW catalysts were confirmed by FT-IR analysis with a Perkin Elmer Spectrum 100 FT-IR Spectrophotometer. 2.3 Probe Experiment TH (99%) and 1-hexene (98%) were used as purchased (Aladdin Chemistry Co.
Bulk HPW hexahydrate is characterized by its cubic structure as shown in (Fig.1a) in diffraction lines.
The well-defined Keggin structure of heteropoly-anions is kept in the crystalline of CsHPW.
Even the amount of the CsHPW of loading is very high, the peaks of Keggin structure are still not strong.