Preparation, characterization, and polymerization of chromium complexes-grafted Al/SBA-15 and Ti/SBA-15 nanosupports

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作者：
Polymer Synthesis Laboratory, Chemistry Department, Zanjan University, Zanjan, Iran [1 ]
不详 [2 ]
机构：
[1] Ahmadi, Ebrahim
[2] Mohamadnia, Zahra
[3] Mashhadi-Malekzadeh, Asemeh
[4] Hamdi, Zahra
[5] Saghatchi, Fatemeh
来源：
Ahmadi, Ebrahim | 1600年 / John Wiley and Sons Inc, Postfach 10 11 61, 69451 Weinheim, Boschstrabe 12, 69469 Weinheim, Deutschland, 69469, Germany卷 / 128期
关键词：
Ethylene polymerization catalysts have been prepared by grafting chromium (III) nitrate onto Al/SBA-15 and Ti/SBA-15 mesoporous materials. A combination of XRD; nitrogen adsorption; TEM; and inductively coupled plasma-atomic emission spectroscopy (ICP-AES); were used to characterize the catalysts. Polymerization activity of Cr/SBA-15 catalyst is significantly improved by Al or Ti insertion to the supports. Particularly; the chromium catalyst prepared with Ti/SBA-15 support is more active than Al/SBA-15 catalyst. © 2012 Wiley Periodicals; Inc;
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