Chemistry Reference
In-Depth Information
Figure 3.
Crystaf profiles of poly(ethylene-co-1-hexene) made with (nBuCp)
2
ZrCl
2
/MAO supported on MCM-41 with
different Si/Al molar ratios:
&
infinite;
*
60 and
~
15. The mol% 1-hexene upper
x-axis was calculated
using the calibration curve in Figure 2.
Table 4.
Characterization of the poly(ethylene-co-1-hexene) made with (nBuCp)
2
ZrCl
2
/MAO immobilized on supports
synthesized with different pore sizes.
Support
mL 1-hexene
0
5
25
50
75
SBA-15
M
n
(
g/
mol)
74530
48869
55640
49333
68525
M
w
=
M
n
2.67
2.47
2.67
3.01
3.22
T
m
(
C)
133
124
113
113
108
8
T
c
(
8
C)
116
111
95
93
88
Cr
ystallinity (%)
65
53
38
31
30
SBA-15-n-decane
M
n
(
g/
mol)
53530
34968
43432
55751
58114
2.78
2.66
2.69
3.03
3.44
M
w
=
M
n
T
m
(
8
C)
133
122
112
108
108
T
c
(
8
C)
117
109
94
89
91
Cr
ystallinity (%)
66
52
37
34
28
SBA-15-TMB
M
n
(
g/
mol)
61391
44489
48885
59091
87092
M
w
=
M
n
2.67
2.61
2.60
2.80
2.93
T
m
(
C)
133
123
110
106
102
8
T
c
(
8
C)
116
112
95
85
82
Crystallinity (%)
65
50
37
29
26
