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

作者：Ahmadi Ebrahim^*; Mohamadnia Zahra; Mashhadi Malekzadeh Asemeh; Hamdi Zahra; Saghatchi Fatemeh

来源：Journal of Applied Polymer Science, 2013, 128(6): 4245-4252.

DOI：10.1002/app.38353

• catalysts
• supports
• polyethylene

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.

• 出版日期2013-6-15