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| 1 | 纳米SiO_2负载Preyssler杂多酸催化剂对水杨酸与苄醇或脂肪醇酯化反应的催化性能(英文)显示文摘An efficient and environmentally benign procedure for the catalytic esterification of salicylic acid with aliphatic alcohols, CnH2n+1OH(n=1-5)and benzylic alcohols,RC6H4CH2OH(R=H,NO2,OCH3,Br,Cl,Me)was developed using nano-SiO2-supported Preyssler heteropolyacid both under thermal conditions and microwave irradiation.Silica nanostructures were obtained through a sol-gel method and were characterized by transmission electron microscopy and powder X-ray diffraction.The effects of various parameters such as solvent type,molar ratio of substrates,Preyssler heteropolyacid loading on silica,catalyst amount,temperature,and reaction time were studied and the optimum conditions were obtained.It has been found that the catalyst with 30 wt%loading is highly active and shows high yields in esterification reactions.The use of nano-SiO2-supported Preyssler heteropolyacid coupled with microwave irradiation allows a solvent-free,rapid(3 min),and high-yielding reaction.This catalyst can be easily recovered and reused for many times without a significant loss in its activity. | Fatemeh F. BAMOHARRAM Majid M. HERAVI Javad EBRAHIMI Ali AHMADPOUR Mojtaba ZEBARJAD | 2011 | 催化学报2011，32，5： | 6 |
| 2 | Biodegradable starch/poly(vinyl alcohol) film reinforced with titanium dioxide nanoparticles显示文摘Biodegradable starch/poly(vinyl alcohol)/nano-titanium dioxide(ST/PVA/nano-TiO2)nanocomposite films were prepared via a solution casting method.Their biodegradability,mechanical properties,and thermal properties were also studied in this paper.A general full factorial experimental approach was used to determine efective parameters on the mechanical properties of the prepared films.ST/PVA/TiO2nanocomposites were characterized by scanning electron microscopy(SEM)and X-ray difraction(XRD).The results of mechanical analysis show that ST/PVA films with higher contents of PVA have much better mechanical properties.In thermal analysis,it is found that the addition of TiO2nanoparticles improves the thermal stability of the films.SEM micrographs,taken from the fracture surface of samples,illustrate that the addition of PVA makes the film softer and more flexible.The results of soil burial biodegradation indicate that the biodegradability of ST/PVA/TiO2films strongly depends on the starch proportion in the film matrix.The degradation rate is increased by the addition of starch in the films. | Zahra Hejri Ali Akbar Seifkordi Ali Ahmadpour Seyed Mojtaba Zebarjad Abdolmajid Maskooki | 2013 | International Journal of Minerals,Metallurgy and Materials2013，20，10： | 5 |
| 3 | Dependency of physical and me-chanical properties of mechanical alloyed AI-AI2 O3 compositeon milling time 显示文摘 | Zebarjad S M Sajjadi S A | 2007 | Mater Des2007，28，： | 1 |
| 4 | The influence of glass fiber on fracture behavior of isotactic polypropylene显示文摘 | Zebarjad S M | 2003 | Mater Des2003，7，： | 1 |
| 5 | lnflunence of filler particles on deformation and fraeture mechanism of isotactic polypropylene显示文摘 | Zebarjad S M Tahani M Sajjadi S A | 2004 | Materials Processing Technology2004，，： | 1 |
| 6 | Isothermal transformation of austenite to bainite in high carbon steels显示文摘 | S.A. Sajjadi S.M. Zebarjad | 2007 | Journal of Materials Processing Tech2007，，1： | 1 |
| 7 | Fracture mechanism under dynamic loading of elastomer-modified polypropylene 显示文摘 | Zebarjad S M Lazzeri A Bagheri R | 2003 | Journal of Materials Science Letters2003，57，： | 1 |
| 8 | Influence of filler particles on deformation and fracture mechanism of isotactic polypropylene显示文摘 | Zebarjad S M Tahani M Sajjadi S A | 2004 | Materials Processing Technology2004，，： | 1 |
| 9 | One-step of CH-A1203/Cu nanocomposite via solution synthesis route 显示文摘 | NASIRI H fabrication combustion Compounds VAHDATI K J ZEBARJAD S M | 2011 | Journal of Alloys and2011，509，： | 1 |
| 10 | Isothermal transformation of austenite to haiuite in high carbon steels 显示文摘 | Sajjadi S A Zebarjad S M | 2007 | Journal of Materials Processig Technology2007，189，13： | 1 |
| 11 | Microstructure evaluation of Al-Al2O3 composite produced by machanical alloying method显示文摘 | Zebarjad S M Sajjadi S A | 2006 | Materials and Design2006，27，： | 1 |
| 12 | Modification of fracture toughness of isotactic polypropylene with a combination of EPR and CaCO3 particles显示文摘 | ZEBARJAD S M SAJJADI S A TAHANI M | | 0，，1： | 1 |
| 13 | On the role of nano-size SiC on lattice strain and grain size of A1/SiC nanocomposite显示文摘 | SABERI Y ZEBARJAD S M AKBARI G H | 2009 | J Alloy Compd2009，484，12： | 1 |
| 14 | A new ap- proach for the analysis of functionally graded bearns显示文摘 | Mirzababaee M Tahani M Zebarjad S M | 2006 | Journal of Achievements in Materials and Manufacturing Engineering2006，17，12： | 1 |
| 15 | The effects of volume percent and aspect ratio of carbon fiber on fracture toughness of reinforced aluminum matrix composites显示文摘 | H. Naji S.M. Zebarjad S.A. Sajjadi | 2007 | Materials Science & Engineering A2007，，1： | 1 |
| 16 | Optimizing the ignition behavior of microwave-combustion synthesized Al 2 O 3 /TiC composite using Taguchi robust design method显示文摘 | G. Golkar S.M. Zebarjad J. Vahdati khaki | 2009 | Journal of Alloys and Compounds2009，，1： | 1 |
| 17 | Influence of fillerparticles on deformation and fracture mechanism of iso- tacticpolypropylene 显示文摘 | ZEBARJAD S M TAHANI M SAJJADI S A | 2004 | Mater Process Technol2004，155，： | 1 |
| 18 | Simulation of thixoformability of A356 aluminum alloy using finite volume method显示文摘 | JAFARI M R ZEBARJAD S M KOLAHAN F | 2007 | Mater Sci Eng A2007，，： | 1 |
| 19 | 查看详情显示文摘 | Abareshi M Goharshadi E K Zebarjad S M Fadafan H K | | 0，，： | 1 |
| 20 | Microstructure evolution of high performance Ni-base superalloy GTD- 111 with heat treatment 显示文摘 | Sajjadi S A Zebarjad S M Guthrie R I L | 2006 | Materials Processing Technology2006，175，13： | 1 |
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