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Copolymerization of Ethylene／1-Butene with Heterogeneous TiCl4／（α-Diimine）nickel（II） Complex Combine
The new type heterogeneous combined catalyst system TiCl4-(α-diimine)nickel(II) complexes/MgC12-SiO2/AlR3 was prepared.......
阿尔茨海默病（Alzheimer's disease,AD)是引起老年人痴呆和死亡的最主要原因。研究表明，β－淀粉样蛋白（beta-amyloid protein,β-A......
The chemoselectivities of PdCl2 and CuCl2-catalyzed oligomerization of 3, 3-dimethyl-butyne: 1, 3, 5-tri-tert-butylbenze......
