通过对聚合动力学曲线、催化剂活性、催化剂的定向能力、聚合物分子量、活性中心浓度(C_p)和链增长速度常数(K_p)等比较,研究了N-催化剂体系内外给电子体在催化丙烯聚合中的作用。结果表明,内给电子体可明显地改变聚合动力学曲线,外给电子体则无影响。内外给电子体均能提高催化活性和定向能力,但它们对C_p和K_p的影响却各不相同。 By comparing the kinetic curves of polymerization, the catalytic activity, the orientation ability of the catalyst, the molecular weight of the polymer, the concentration of active site (C_p) and the constant rate of chain growth (K_p), the effects of internal and external electron- In the role. The results show that the internal electron donor can significantly change the polymerization kinetic curve, external electron donor has no effect. Both internal and external electron donors can improve the catalytic activity and orientation ability, but they have different effects on C_p and K_p.