K, α value of Some Common Polymer
Abstract:
Polymer, Polymerization
Method, Molecular Weight Range, Solvent Temperature K Value, Polystyrene (PS)
Solution Polymerization 3-1700 Toluene 25 ° C 1.7 0.69 1-11 Benzene 25 ° C 4.17
0.60 5.9-5.2 Benzene 20 ° C 1.23 0.72 330-Benzene 30 ° C 1.1 0.73
polymethylmethacrylate bulk polymerization 70-6300 benzene 25 ° C 0.468 0.77
(PMMA) 240-4500 benzene 25 ° C 0.38 0.70 emulsion polymerization 410-3400
acetone 25 ° C 0.96 0.69 410-3400 toluene 25 ° C 0.71 0.73 410-3400 Chloroform
25 ° C 0.34 0.83 styrene-butadiene rubber (SBR) emulsion polymerization 25-500
toluene 25 ° C 5.25 0.66 emulsion polymerization 50 ° C 26-1740 toluene 30 ° C
1.65 0.73 emulsion polymerization 5 ° C 55-1000 toluene 30 ° C 2.95 0.75
natural rubber (NR) 0
Polymer
|
Polymerization Method
|
Molecular Weight Range
|
Solvent
|
Temperature
|
K Value
|
α Value
|
Polystyrene (PS)
|
solution polymerization
|
3-1700
|
Toluene
|
25 ° C
|
1.7
|
0.69
|
1-11
|
benzene
|
25 °C
|
4.17
|
0.60
|
||
5.9-5.2
|
benzene
|
20 ° C
|
1.23
|
0.72
|
||
330-
|
benzene
|
30 ° C
|
1.1
|
0.73
|
||
Poly (methyl
methacrylate) （PMMA）
|
Polymerization
|
70-6300
|
Benzene
|
25 ° C
|
0.468
|
0.77
|
240-4500
|
benzene
|
25 ° C
|
0.38
|
0.70
|
||
Emulsion Polymerization
|
410-3400
|
Acetone
|
25 ° C
|
0.96
|
0.69
|
|
410-3400
|
Toluene
|
25 ° C
|
0.71
|
0.73
|
||
410-3400
|
Chloroform
|
25 ° C
|
0.34
|
0.83
|
||
Styrene-butadiene rubber
(SBR)
|
emulsion polymerization
|
25-500
|
Toluene
|
25 ° C
|
5.25
|
0.66
|
Emulsion Polymerization
50 ° C
|
26-1740
|
Toluene
|
30 ° C
|
1.65
|
0.73
|
|
Emulsion Polymerization 5
° C
|
55-1000
|
Toluene
|
30 ° C
|
2.95
|
0.75
|
|
Natural rubber (NR)
|
0.4-1500
|
Benzene
|
25 ° C
|
5.02
|
0.17
|
|
Butadiene rubber (BR)
|
20-1300
|
Toluene
|
25 ° C
|
2.15
|
0.65
|
|
26-660
|
Butanone
|
30 ° C
|
4.8
|
0.55
|
||
Polyacrylonitrile (PAN)
|
48-270
|
Dimethylformamide
|
25 ° C
|
1.66
|
0.81
|
|
Polyester (PET)
|
3-370
|
Dimethylformamide
|
25 ° C
|
2.33
|
0.75
|
|
12-28
|
Phosphorus Chlorobenzene
|
25 ° C
|
3.0
|
0.77
|
||
5-25
|
phenol /
tetrachloroethane
|
25 ° C
|
2.1
|
0.82
|
||
Polyvinyl alcohol (PVA)
|
11.6-195
|
Water
|
25 ° C
|
5.95
|
0.63
|
|
44-1100
|
Water
|
50 ℃
|
5.9
|
0.67
|
||
30-120
|
Water
|
30 ℃
|
6.6
|
0.64
|
| |
| |
|
Coyp right by @Hangzhou Zhongwang Technology CO.,LTD
没有评论:
发表评论