Influence of Organoboron Compounds on Ethylene Polymerization Using Cp₂ZrCl₂/MAO as Catalyst System

Table 1

Catalytic activity, density, and molecular weight results.

Sample	Organoboron compound; (B)	Nature	Catalytic activity; (KgPE/molZr)	Density; (g/cm^3)	Mw; (Kg/mol)	PDI
PE-1	None (reference)	—	123.25	0.970	83.95	2.7
PE-2	BC6F53  (𝐁𝟏)	Nonionic	67.34	0.974	116.18	4.3
PE-3	[C6H5N(CH3)2H]^+[B(C6F5)4]^−  (𝐁𝟐)	Ionic	33.31	0.925	207.76	5.2

Zr = 0.1283 mmol, molar ratio MAO/Zr = 100, B/Zr = 5, toluene = 1.41 mol, polymerization temperature = 50°C, and pressure = 1 bar.