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Online since: July 2012
Authors: Xue Wu, Juan Juan Tian, Hui Juan Hao, Xin Zhou
Thus, it changed the structure of DPQ, as a result, there was a fluorescence quenching.
But there were small changes in 4 structure of DPQ was stable, the probe DPQ could be used under the condition.
Contemporary Heterocyclic Chemistry; Wiley, New York, 1982; pp 199-231
Online since: May 2011
Authors: Jian Ling Li, Yi Tuo Wang, Ya Kun Zhang, Gui Mei Han, Xin Dong Wang, Fei Gao
Structural and Electrochemical Study of Dandelion-like Manganese Dioxide Synthesized by a New Microwave Hydrothermal Method Jianling Lia, Yituo Wangb, Yakun Zhangc, Guimei Hand, Fei Gaoe and Xindong Wangf Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China alijianling@ustb.edu.cn, bbuck493321145@yahoo.com, cyakun86@126.com, dHangui_mei@126.com, eggff999@163.com, fechem@ustb.edu.cn Keywords: supercapacitor, microwave-hydrothermal, manganese dioxide, specific capacitance.
In this paper, we successfully applied the microwave hydrothermal method to fabricate γ-MnO2 with dandelion-like structure, without any assistance conditions (templates or surfactants).
More specifically, the dandelion-like structure which composed of sphere core and outside fibers was observed from SEM images with larger magnitude.
Online since: November 2013
Authors: Xiang Hui Lu, Chen Liu, Jun Tian, Yang Li
Study of applying aramid fiber treated insurface to EPDM rubber composite materials Xiang Hui LU1,a,Chen Liu1,b, Jun Tian1,c,Yang Li1,d 1Institute of Xi’an Modern Chemistry,Xi’an 710065, China aluxianghui2000@163.com , bcrazy@mail.ustc.edu.cn,ctianjun2001@eyou.com, dCorresponding Author,E-mail: 4178833@qq.com Keywords: aramid fiber coupling agent EPDM rubber composite materials Abstract.
This article view of the successful application of the coupling agent modified glass fiber surface modification, after analysis of the structure of the KH-550 and aramid fiber determine its Kevlar fiber surface modification, in order to achieve better the treatment effect.
Aramid fibers and the mechanism of action of KH-550 The silane coupling agent is a molecule having two different reactive groups of the organic silicon compound, its chemical structure can generally be represented by the general formula YRSiX3, wherein X is a hydrolyzable group, typically halogen, and alkoxy etc., X-hydrolysis to form a silanol YRSiX3 Hydrolysis YRSi(OH)3+3HX Silanol generated in the surface of the filler with the filler material, a chemical reaction or chemical adsorption, the formation of a certain form of bonding.KH-550 after hydrolysis of the silane coupling agent, - (OCH2CH3) 3 group, generating-OH with EPDM rubber molecule-OH in the reaction, while the other end-CH2CH2CH2HN2-HN2 group aramid fiberthe-COOH groups react with the fibers, the rubber is formed between the organic combination of the ternary component to improve the degree of binding of the fibers and rubber.
Online since: January 2013
Authors: Suo Xia Hou, Xiao Ming Jia, Hui Gao
Both of MoS2 and WS2 are hexagonal layered structure, easy to slip in between the layers under the action of friction, shear strength is also very small; the tructure can reduce the coefficient of friction [1].
Solid lubrication technology and its applications in the metal structure[J].
Chinese Journal of Inorganic Chemistry. 2008, 24(2):275~279
Online since: June 2014
Authors: Jun Ming Guo, Gui Yang Liu, Zhi Fang Zhang, Ming Wu Xiang, Bin Li, Ji Jun Huang, Hong Li Bai
China 2 Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming 650500, P.
Electrochemical properties of LiMn2O4 materials can be determined by their structure integrity, particle size and dispersibility, morphology, density, etc.
The phase identity and crystal structure of the samples were examined by X-ray diffraction (XRD) using a Rigaku D/MAX-rB diffractometer with Cu Kα radiation, operating at 40 kV and 30 mA.
Online since: March 2007
Authors: Hai Won Lee, Yong Il Kim, Sang Wook Park, Hyun Jin Yoon, Hee Young Oh, Gi Jin Kwun
Synthesis of Resists Containing a Photoacid Generator Group for Atomic Force Microscope Lithography Sang-Wook Park, Hyunjin Yoon, Heeyoung Oh, Yong Il Kim, Gijin Kwun and Haiwon Lee* Department of Chemistry, Hanyang University, Seoul 133-791, Korea E-mail address: haiwon@hanyang.ac.kr Keywords: photoacid generator (PAG), PAG polymer, atomic force microscope (AFM), lithography Abstract Photoacid generators (PAGs) have been widely used as a key component in a chemically amplified photoresist system.
The structures and properties of PAG-containing polymers were evaluated by GPC and TGA.
The peaks of a, b, c, d indicate the positions of hydrogen in polymer structure.
Online since: October 2010
Authors: Qiong Hou, Guo Long Li, Ting Guo, Xin Xu, Xiang Hua Zeng, Hong Yu Zhen
Synthesis and Photovoltaic Properties of fluorene-based copolymers Qiong Hou*1, a, Xianghua Zeng1, b, Hongyu Zhen2, c, Guolong Li2, d, Ting Guo3, e, Xin Xu1, f 1School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China 2State key laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China 3Institute of Polymer Optoelectrionic Material and Devices, South China University of Technology, Guangzhou 510640, China *ahouqiong@scnu.edu.cn, bsarnwa@163.com, chongyuzhen@zju.edu.cn, dguolongli@zju.edu.cn, egt1011@163.com, Ryan0849@sina.com Keywords: fluorene; thiophene; side chain; solar cells Abstract.
The devices have the general structure ITO/PEDOT:PSS/polymer: fullerene(1:2)/Al.
J-V characteristics of devices with a structure of ITO/PEDOT:PSS/copolymer:PCBM (1:2, w/w) /Al under the illumination of an AM 1.5 G solar simulator(800 W m−2).
Online since: January 2012
Authors: Guo Feng Wang, Ling Sun, Wen Yong Yu, Qun Su
Carbon-nanotubes-material is nanoscale material, which structures is diversity and display a great deal characteristic (such as tough) different from the other material in nanoscale and can mix well with asphalt.
There are a large number of – type- conjugate bond and circled construction exist in carbon-nanotubes-material structures, which can be blended more easily than it do with other material scaled in nanometer.
Raw materials for test Original asphalt is bitumen 110 of Panjin, and agent SBS is agent 1301 aligned in line, which molecular weight ranges from 50 to 200 MW thousand unit, and stabilizer is Lu Feite agent made by Shanghai Qunkong asphalt material Technology Co., Ltd., and Carbon-nanotubes-material is multi-wall Carbon-nanotubes-material and is made by Chengdu organic Chemistry of Chinese Academy of sciences, which external diameter range from 8 to 15 nanometer, and which OH proportion is 3.70% in weight, and which length is 50 nanometer, purity more than 95% in weight.
Online since: May 2006
Authors: Wen Jian Weng, Jian Xun Wang, Chen Lu Song, Li Li Pan, Gao Ling Zhao, Kui Cheng, Pi Yi Du, Ge Shen, Gao Rong Han, Yan Bao Li
Discussion During ACP formation, the carbonate has been incorporated into its structure (Fig.2) but does not induce crystallization (Fig.1).
In this process, carbonate plays critical role, incorporation of carbonate along with more Ca ions into ACP structure leads to the increase of Ca/P ratio during the precipitation reaction.
Jemal: Journal of Materials Chemistry, Vol.13(2003), p.888
Online since: September 2013
Authors: Hong Ying Gong, Hui Xiao Li, Xiao Bin Su, Si Fan Wang, Yun Long Fu
The MFR3 is between MFR1and MFR2,and the high molecular-weight particles is less than low molecular-weight particles in PC3, the MFR3 is close to MFR2,which shows that the MFR directly relate to the molecular weight of the samples .The viscosity and flow performance depended on the structure of PC[15,16].
[11] E.L.Thomas: The structure and properties of polymer(Science Press, China 2009).In Chinese
[12] Jae-Won Park,Jae-Sang Lee,Byung-hoon Lee,Min-kyu Kim,Byung-Sik Moon,Chan-Young Lee, Byung-Ho Choi: Radiation Physics and Chemistry.Vol.84(2013).p,126