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Online since: January 1992
LEHN, 1987 Chemistry Nobel Laureate, in which were presented some of the possibilities provided by synthetic chemistry for molecular engineering.
Grignard, 1912 Chemistry Nobel laureate, offered during ISIC 6 to J .
Lehn, also Chemistry Nobel laureate (1987).
The Editors A PAGE OF THE HISTORY OF CHEMISTRY: THE BIRTH OF MODERN ORGANIC CHEMISTRY NOMENCLATURE AND EVERYDAY LIFE IN 1931 FOR A CHEMISTRY NOBEL PRIZE LAUREATE Ralph Setton C.
Paul BAUD, General Secretary of the Treatise on Organic Chemistry.
Online since: June 2013
Authors: Jun Sheng Yuan, Qing Zhu Zheng
Effect of TiO2 Concentration on Structure and Performance of Polysulfone Hollow-fiber Ultrafiltration Membrane Qingzhu Zheng1,2,a Junsheng Yuan1,3,b* 1.
Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China; 2.
Furthermore, the effect of TiO2 nanoparticle concentration on structure and performance of membrane were investigated.
It was found that with the addition of TiO2 nanoparticle, the structure and performance are influenced obviously.
Absorption between the hydroxyl on the surface of TiO2 nanoparticle and PSF molecular chains[6] emerged, and then macromolecule network structure with stable mechanical behavior was formed with the addition of TiO2 nanoparticle whose specific area was large enough.
Online since: June 2012
Authors: Bin Han, Shuize Wang, Wen Tan
The optimal steel chemistry and rolling and cooling processing-parameters are obtained through the modeling.
Comparison of modeling results and industrial trials show that current modeling structure is able to model and optimize processing parameters for C-Mn-Si DP steel production on CSP line.
According to reported papers, Ar3 relates to steel chemistry, cooling rate and austenite grain size.
But when FT7 is lower than 824℃ during the modeling, pearlite structure formed.
Therefore the optimal HT is from 680 to 720℃, and it is in favor of refining ferrite grain size as well as avoiding forming pearlitic structure in the steel.
Online since: December 2011
Authors: Jian Hu, Fang Wen Yang, Ming Gang Huang
The purity and structure of the intermediate were also measured by GC-MS.
R.V.Schleyer: Chemistry of Adamantane (Spring-Verlag, New York,1971)
Reinhoudt: Chemistry-A European Journal.
Kamela: Materials Chemistry and Physics.Vol.124(2010),p. 458 [19] E.
Yurashevich, et al. : Russian Journal of Applied Chemistry Vol.74(2001),p.1892
Online since: October 2006
Authors: James D.S. Evans, David H. Bennett, Stephen D.G. Charles
., Aldermaston, Reading, RG7 4PR, UK a stephen.charles@awe.co.uk b james.evans@awe.co.uk cdavid.bennett@awe.co.uk Keywords: PZT, Ferroelectric, PbO, Powder Processing Abstract Wet chemistry produced niobium modified PZT 95/5 was synthesised and processed for use in a ferroelectric power supply.
The effects of doping the wet chemistry derived oxide powder with additional PbO via a traditional mixed oxide route were assessed as a function of density and remnant polarisation.
Introduction At AWE PZT 95/5 is produced via a wet-chemistry co-precipitation process whereby PZT oxalates are precipitated in a solution of ammonium oxalate.
The PZT structure is modified with niobium with the purpose of biasing the ferroelctric rhombohedral low temperature phase and controlling the de-poling characteristics.
The wet chemistry co-precipitation preparation of PZT 95/5 at AWE is designed to ensure that compositional control is maintained throughout the process.
Online since: May 2012
Authors: Xin Min Min, Guo Yi Wang
Electronic Structure and Thermoelectric Property of Misfit Layered Cobaltite and Doped Series Xin-Min Mina Guo-Yi Wangb Chemistry Department, School of Science, Wuhan University of Technology, Wuhan 430070, China amxm@whut.edu.cn, b821357562@qq.com Keywords: electronic structure; thermoelectric property; cobaltite; doped Abstract.
DFT-DVM method can be used to calculate larger structure models of molecules, clusters and solids, so it has been widely used in chemistry, physics, material science an so on.
Fig.1 Structure of Ca3Co4O9 Ca3Co4O9 is with symmetry of Cm space group.
The character structure of CoO2 layer is edge-sharing [Co(1)O6] octahedron.
Ca2CoO3 layer is similar to structure of NaCl.
Online since: March 2015
Authors: Hai Liang Dong, Lu Bin Lin, Xue Yu Xing, Qing Yun Yu, Xiao Ze Jiang, Mei Fang Zhu
Both glycopolymers have the micellization process at middle pH (pH 6-8), but possess different isoelectric points (pIs) (at pH 8.0 and 7.8) for their pH responsive block of PEG113-b-P(DEA55-co-GAMA12) and PEG113-b-PDEA55-b-PGAMA15 with DEA-co-GAMA random structure or DEA chain only, respectively.
Although two block glycopolymers have the similar DP of each block, different CMC, micellar size, and pIs of glycopolymers were investigated for their different structures with random or block chains.
Ren, Synthesis and self-assembly of pH-responsive amphiphilic dendritic star-block terpolymer by the combination of ROP, ATRP and click chemistry, Eur.
Armes, Synthesis of low polydispersity, controlled-structure sugar methacrylate polymers under mild conditions without protecting group chemistry, Chem.
Liu, Fabrication of two types of shell-cross-linked micelles with “inverted” structures in aqueous solution from schizophrenic water-soluble ABC triblock copolymer via click chemistry, Langmuir. 25 (2009) 2046-2054
Online since: November 2016
Authors: Bing Li, Ju Fan Zhang, Guang Lu Jia
Compared to perfect crystal lattice, typical edge dislocation structure has been modeled by quantum chemistry simulation in order to analyze the influence of crystal structure defects on removal process in atmospheric pressure plasma polishing (APPP).
Thus, theoretical simulation demonstrates that structure dislocation is helpful for raising the etching rate, which accords well with testifying experiments results.
But maybe structure dislocation could deteriorate surface roughness to some extent in initial stage of machining, as the dislocation structure is usually etched unevenly, although this is just a transition period.
It is usually a non-uniform etching for dislocation structure in the early stage of processing, which leads to a temporary deterioration of surface roughness.
Acknowledgments We thank Professor Yuan Fulong of Heilongjiang University for supporting and instructing on quantum chemistry simulation.
Online since: May 2008
Authors: Young Kyoo Kim, Chang Sik Ha
The organic light-emitting device (OLED), which exploits OEL emission from organic semiconducting thin films (with thicknesses of less than a few hundred nanometers), sandwiched between electrodes, has attracted keen interest in its application to flat-panel displays, due to its high luminous efficiency, low driving voltage, tunable colors as well as a convenient device-structure design and low fabrication costs when compared with every other known display device.
This book describes the general principle of device operation, recent progress made in materials and device design, optimization of device structures, some pertinent processing issues, market trends and the future outlook for OLED-related applications.

It is designed for the reader who has some prior knowledge of physics, chemistry, polymer science and materials science, and is thus suitable for use as a graduate-level one-semester course for chemists, physicists, engineers and polymer or materials scientists.
Online since: January 2015
Authors: Wei Liu, Bo Zhou, Ling Shi, Xian Lan Chen, Chao Yong Mang, Gao Zhang Gou
China 3College of Pharmaceutical Science and Chemistry, Dali University, Dali, Yunnan 671000, P.R.
Density functional theory (DFT)[5] is a popular quantum mechanical modeling method applied in physics and chemistry to investigate the ground-state properties of a chemical system.
In recent years, the DFT or TD-DFT method has frequently been used to calculate molecular structure, electronic structure, IR spectra, UV-Vis spectra and molecular orbital information with rather satisfactory results obtained.
Computational Details The structures of the meso-phenyl and 3,5-diaryl substituted BODIPY dyes (A~D) are shown in Figure 1.
The popular quantum chemistry software Gaussian 09W[8] was used to implement the present computational study.