financially supported by the Natural Science Foundation of Hebei Province(No.B2015202049);the National Natural Science Foundation of China(Nos.21004017 and 50573018)
Tandem catalytic systems, consisting of ethylene bis(indenyl) zirconium dichloride with two different cocatalysts, alkylaluminum(diethylaluminium chloride or trialkylaluminum) and methylaluminoxane, were employed ...
the National Natural Science Foundation of China(No.50573018)
Three ansa-metallocenes(Me_2C)(Me_2Si)Cp_2TiCl_2(1),[(CH_2)_5C](Me_2Si)Cp_2TiCl_2 (2)and (Me_2C)(Me_2Si)Cp_2ZrCl_2 (3)with larger dihedral angles and longer distance from metal to the center of Cp planes were synthesi...
A novel catalytic system to prepare branched polyethylene with single catalyst activated by two different co-catalysts is reported in this paper via the tandem catalysis,with ethylene as single monomer.Such catalytic ...
Supported by the National Natural Science Foundation of China (Grant No. 50573018);Doctoral Foundation of Hebei Province (Grant No. 05547003D-6)
Thermal segregations of LLDPE were treated with successive self-nucleation/annealing (SSA) on dif-ferential scanning calorimetry (DSC). Information on molecular heterogeneity of LLDPE was obtained. After SSA was treat...