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7753895 
Journal Article 
PREPARATION AND SELF-ASSEMBLY OF GLOBAL NANO-PARTICLES OF MgCl2-CH3CH2 OH COMPLEX 
Huang, Q; Liu, Zhi; Liu, W; Yi, J; Zhang, X; Gao, KeJ; Huang, H; Liu, Wei; Zhen, HP; Yang, W 
2012 
Yes 
Gaofenzi Xuebao
ISSN: 1000-3304 
8 
883-886 
Chinese 
WOS:000309198100014 
After MgCl 2 was dissolved in ethanol with the ratio of 1: 20 in mole at 120&degC, the solution was cooled to 70°C and transferred to the cooling liquid consisting of n-hexane (30 mL) and wax (0. 3 g) at O°. Precipitate was produced. Filtrated and washed with n-hexane,the residue was dried by vacuum at 50° ,and MgCl 2-CH 3CH 2OH particles were obtained. The size of the particles determined by TEM was at the range from 30 nm to 100 nm. The nano-sized particles of MgCl 2-CH 3CH 2OH could become nano wires by self-assembly technology at room temperature. WAXD results showed that the crystallinity of the obtained nano-sized MgCl 2CH 3CH 2OH particles became poor, just a broad and weak signal at 20θ = 32° ∼ 35° was observed, while MgCl 2 showed four sharp signals at 20θ = 15°, 30°, 35° and 50°. The obtained particles were useful as support for preparing nano-sized Ziegler-Natta catalysts. It was confirmed that the prepared catalysts may efficiently polymerize ethylene to form polymer particles with 200 ∼ 300 nm or 2 ∼ 4 μ,m in diameter, respectively. 
MgCl2-CH3CH2OH complex; Nano-sized particle; Support; Ziegler-Natta catalyst; Nano-sized PE particle