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Online since: April 2016
Authors: Zhong Cao, Ni Gao, Huan Zhi Zhang, Fen Xu, Li Xian Sun
Preparation and Thermal Performance of Poly(methyl methacrylate)/binary Alkane-alcohol Organic Eutectic Microcapsules as Phase Change Materials for Cold Storage
Ni Gao1,2, Li-Xian Sun 2,1,a, Fen Xu 2,b, Huan-Zhi Zhang2 and Zhong Cao1,c
1School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, Hunan 410004, China
2Guangxi Key Laboratory of Information Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China
asunlx@guet.edu.cn, bxufen@guet.edu.cn, czhongcao2004@163.com
Keywords: Poly (methyl methacrylate) (PMMA), Binaryalkane-alcohol Organic eutectic (TD-DD), Microcapsules, Phase change materials
Abstract.
The surface morphology, structure and thermal capability of microcapsules were characterized by SEM,FT-IR,DSC andTG.
The surface morphology, structure and thermal capability of microcapsules were characterized by SEM,FT-IR,DSC andTG.
Online since: October 2012
Authors: Mohamad Rusop Mahmood, Ismail Lyly Nyl, N.N. Hafizah, M.Z. Musa
In the Fig. 3(a), the peaks around 400 - 800 cm-1 are evidence for Ti-O-Ti network Structures [10].
[11] Li Sen, Wang Kuan, Zhang Zhi Ren, Song Chun Lian, Cheng Jiang, Yang Zhuo Ru, Wen Xiu Fang, Pi Pi Hui, Preparation and characterization of porous titania-grafted poly(styrene-divinylbenzene)/maleic anhydride nanocomposite microspheres, Science China Chemistry. 53 (2010) 605–611
[11] Li Sen, Wang Kuan, Zhang Zhi Ren, Song Chun Lian, Cheng Jiang, Yang Zhuo Ru, Wen Xiu Fang, Pi Pi Hui, Preparation and characterization of porous titania-grafted poly(styrene-divinylbenzene)/maleic anhydride nanocomposite microspheres, Science China Chemistry. 53 (2010) 605–611
Online since: May 2013
Authors: Hong Di Zhang, Bin Sun, Jie Zheng, Jia Yin Huang, Jun Cheng Zhang, Yun-Ze Long
Aligned Nanofiber Arrays and Twisted Nanofiber Ropes via Electrospinning with Two Frames Collector
Jie Zheng1,a, Yun-Ze Long1,2,b,*, Bin Sun1,3,c, Hong-Di Zhang1,2,d,
Jun-Cheng Zhang1,2,e, and Jia-Yin Huang1,2,f
1College of Physics, Qingdao University, Qingdao 266071, China
2Key Laboratory of Photonics Materials & Technology in Universities of Shandong (Qingdao University), Qingdao 266071, China
3College of Chemistry, Chemical Engineering & Environment, Qingdao University, Qingdao 266071, China
azhengjie2009123@126.com, byunze.long@163.com, cqdusun@126.com,
dhongdi_zhang@163.com, ejc-zhang@qdu.edu.cn, fwlxhuang@163.com
Keywords: electrospinning; aligned nanofibers; twisted nanofiber ropes
Abstract.
On the other hand, micro/nanofibers with structures like twisted ropes, which have many potential uses in some fields such as artificial muscle, electronic devices and sutures in medical application [6-8].
On the other hand, micro/nanofibers with structures like twisted ropes, which have many potential uses in some fields such as artificial muscle, electronic devices and sutures in medical application [6-8].
Online since: June 2013
Authors: Shou Zhi Pu, Zhi Yuan Sun, Xiao Dan Zhang, Shi Qiang Cui
Study on Photochromic Materials with Synthesizes and Properties of a Novel Unsymmetrical Photochromic Diarylethene
Zhiyuan Sun, Xiaodan Zhang, Shiqiang Cui, and Shouzhi Pu*
Jiangxi Key Lab of Organic Chemistry
Jiangxi Science & Technology Normal University, Nanchang, China
pushouzhi@tsinghua.org.cn
Keywords: diarylethene; photochromism; kinetics; fluorescence
Abstract.
The structure of 1a was characterized by 1H NMR. 1H NMR (400 MHz, CDCl3, ppm): δ 1.93 (s, 3H, -CH3), 2.18 (s, 3H, -CH3), 2.31 (s, 3H, -CH3), 7.03 (s, 1H, thiophene-H), 7.18-7.25 (m, 3H, benzene-H), 7.28-7.31 (m, 3H, benzene-H), 7.32-7.45 (m, 2H, benzene-H).
The structure of 1a was characterized by 1H NMR. 1H NMR (400 MHz, CDCl3, ppm): δ 1.93 (s, 3H, -CH3), 2.18 (s, 3H, -CH3), 2.31 (s, 3H, -CH3), 7.03 (s, 1H, thiophene-H), 7.18-7.25 (m, 3H, benzene-H), 7.28-7.31 (m, 3H, benzene-H), 7.32-7.45 (m, 2H, benzene-H).
Online since: December 2012
Authors: Quoc Toan Le, S. De Gendt, H. Struyf, T. Conard, E. Kesters
De Gendt1,2
1 Imec, Kapeldreef 75, 3001 Leuven, Belgium
2 also at Dept. of Chemistry, KULeuven, 3001 Leuven, Belgium
QuocToan.Le@imec.be
Keywords: Post-etch residue removal, UV treatment, fluorocarbon polymer, sidewall analysis, AR-XPS, 2.0 low-k dielectrics
Introduction
In back-end of line (BEOL), the use of fluorocarbon-containing plasmas such as CF4 and C4F8 for patterning of low-k dielectrics with k-value ~2.3-2.5 can result in the presence of a highly fluorinated layer, deposited on the sidewalls and bottom of the trenches [1,2].
In addition to these checkerboard samples, polymer residues generated on the low-k sidewall of patterned structures were also utilized for this study.
In addition to these checkerboard samples, polymer residues generated on the low-k sidewall of patterned structures were also utilized for this study.
Online since: July 2011
Authors: Shi Tong Zhang, Fan Gui Zeng, Qing Rong Zheng
During coal carbonization, thermal detachment of aliphatic side groups causes disintegration of the coal structure.
Development of coal structure.
Concept of supramolecular structure of coal and its research approach, methodology.
Application of thermal analysis method and infrared analysis method in coal chemistry.
FT-IR study on structure evolution of middle maturate coals.
Development of coal structure.
Concept of supramolecular structure of coal and its research approach, methodology.
Application of thermal analysis method and infrared analysis method in coal chemistry.
FT-IR study on structure evolution of middle maturate coals.
Online since: July 2011
Authors: Yi Chih Lee, Chia Ko Lee
Coupling with any arbitrary shape for the functions and interactions, and by using the above-mentioned two-stage model building procedure, MARS is capable of reliably tracking the very complex data structures usually hidden in high-dimensional data [7].
European Journal of Medical Chemistry, Vol.31(1996), p.797-803
European Journal of Medical Chemistry, Vol.31(1996), p.797-803
Online since: June 2012
Authors: Hui Guo, Wen Hao Zhou, Cheng Jia Shang
Effect of tempering temperature on the microstructure and mechanical properties of a 0.1C steel with high strength and low yield ratio
Wenhao Zhoua, Hui Guob and Chengjia Shangc
Department of Materials Physics and Chemistry, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, P.R.China
azhouwenhao1987@yahoo.com.cn, bguohui@mater.ustb.edu.cn, ccjshang@ustb.edu.cn
Keywords: low carbon steel, yield ratio, mechanical property, microstructure, tempered.
Microstructures change little from 550°C to 650°C, still maintaining lath structure.
Microstructures change little from 550°C to 650°C, still maintaining lath structure.
Online since: October 2011
Authors: Fu Bin Tang, Guo Nian Zhu, Yi Hua Liu
The rate of degradation depends on pesticide chemistry, as well as on environmental conditions.
Mobility is also influenced by environmental and site characteristics including weather, topography, canopy, and ground cover; and soil organic matter, texture, and structure.
Mobility is also influenced by environmental and site characteristics including weather, topography, canopy, and ground cover; and soil organic matter, texture, and structure.
Online since: November 2010
Authors: Wen Feng Xu
Biocompatibility and Medical Application of Carbon material
XU Wenfeng
College of Chemistry and Environment Engineering, Chongqing University of Arts and Sciences,
Chongqing 402160, China
E-mail address: xwf_228@163.com
Keywords: Carbon composites; implant; compatibility; medical application
Abstract: Carbon composites have good mechanical properties and preserve the inherent excellent
biocompatibility of carbon, which make them great potential as orthopedic implants in human body.
As material, some property of material, such as the microstructure, tissue structure and surface, will effect directly on the biocompatibility of carbon composites.
As material, some property of material, such as the microstructure, tissue structure and surface, will effect directly on the biocompatibility of carbon composites.