Table 2 Ethylene copolymerization with Ni catalysts^a.

Ent.	Cat.	Comon.	[M]/mol L⁻¹	P /atm	Yield /g^b	Act. ^b (10⁴)	Incorp. ^c mol%	T_m^{d /}°C	M_n^e (10⁴)	M_w/M_n^e
1	Ni-OH	MA	0.1	8	0.09	3.6	1.1	123.9	2.9	1.9
2	Ni-ONa	MA	0.1	8	0.12	4.8	1.5	128.6	3.6	1.8
3	Ni-ONa-SiO₂	MA	0.1	8	0.16	6.4	0.1	130.4	3.0	2.3
4	Ni-ONa-TiO₂	MA	0.1	8	0.14	5.6	0.7	128.4	3.8	2.1
5	Ni-ONa-Al₂O₃	MA	0.1	8	0.13	5.2	1.5	124.8	3.8	1.8
6	Ni-ONa-ZnO	MA	0.1	8	0.28	11.2	2.0	125.0	4.7	1.9
7	Ni-ONa-MgO	MA	0.1	8	0.24	9.6	2.5	124.7	5.6	2.6
8	Ni-ONa-MgO	MA	0.1	30	0.65	26.0	0.8	128.6	10.1	2.6
9	Ni-F-ONa-MgO	MA	0.1	8	0.31	12.4	2.9	123.3	4.6	2.1
10	Ni-F-ONa-MgO	MA	0.1	30	0.76	30.4	1.3	126.2	9.3	1.8
11	Ni-F-ONa-MgO	MA	0.05	30	1.14	45.6	0.5	130.8	14.7	2.9
12	Ni-ONa-MgO		0.1	8	0.19	7.6	1.5	126.5	6.2	2.3
13	Ni-ONa-MgO		0.1	8	0.15	6.0	1.2	125.9	3.3	1.7
14	Ni-ONa-MgO		0.1	8	0.77	30.8	0.9	128.9	14.6	1.9
15	Ni-ONa-MgO		0.2	8	0.25	10.0	1.8	126.7	6.0	1.8
16	Ni-ONa-MgO		0.1	8	0.26	10.4	0.1	130.3	9.7	2.3
17	Ni-ONa-MgO		0.1	8	0.06	2.4	0.3	128.2	3.8	1.8
18	Ni-ONa-MgO		0.1	8	0.10	4.0	0.7	128.4	4.8	2.1
19	Ni-ONa-MgO		0.1	30	0.83	166.0	0.1	133.4	83.4	3.0
20	Ni-F-ONa-MgO		0.1	30	0.63	126.0	1.2	128.2	11.7	2.4
21	Ni-F-ONa-MgO		0.05	30	2.05	410.0	0.3	132.4	34.3	4.0
22	Ni-ONa-MgO		0.5	8	0.95	190.0	0.7	129.0	26.8	2.1
23	Ni-ONa-MgO		0.5	8	1.03	206.0	0.7	129.0	29.2	2.3
24	Ni-ONa-MgO		0.5	8	1.16	232.0	0.6	130.8	30.7	2.7

^aConditions: The same metal loading (20 µmol/g) was used for all solid supports; 5 mL n-heptane; time = 30 min; T = 80 °C; Entries 1–18: Ni quantity 5 µmol; Entries 19–24: Ni quantity 1 µmol.
^bPolymer yield and activity values are average of at least two runs. Activity = 10⁴g mol⁻¹ h⁻¹.
^cComonomer incorporation ratio was determined by ¹H NMR in C₂D₂Cl₄ at 120 °C.
^dMelting temperature determined by DSC.
^eM_n: 10⁴ g mol⁻¹, M_n and M_w/M_n determined by GPC in trichlorobenzene at 150 °C.

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