All properties

Comparison of polybutadiene properties

 Molecular weight characteristics of Synthetic Poly-Butadiene Rubber:

 PROPERTY CATALYST SYSTEM
CONVENTIONAL Nd CATALYST COMCAT Nd-FC/G2
Mn x 10-3, g/mol 250 153
Mw x 10-3, g/mol 834 369
Mz x 10-3, g/mol 3367  746

 PDI:

Mw/Mn 3.3 - 4.6 2.41

Microstructure properties of Synthetic Poly-Butadiene Rubber:

 PROPERTY CATALYST SYSTEM
CONVENTIONAL Nd CATALYST COMCAT Nd-FC/G2
1,4 CIS, % 98.0 98.17
1,4 TRANS, % 1.56 1.39
Vinyl, % 0.44 0.44

Compound (IRB7) properties of Synthetic Poly-Butadiene Rubber:

 PROPERTY CATALYST SYSTEM
CONVENTIONAL Nd CATALYST COMCAT Nd-FC/G2
Tensile 14.5 - 16.0 16.69
Elongation 339 - 350 377
DMA Tan Δ @ 0°C 0.1285 - 0.1171 0.0955
DMA Tan Δ @ 60°C 0.1214 - 0.1038 0.0820
Rebound 54.48 57.12
Extrusion Rating 4B - 6A 7A

Physical properties of Synthetic Poly-Butadiene Rubber:

 PROPERTY CATALYST SYSTEM
CONVENTIONAL Nd CATALYST COMCAT Nd-FC/G2
Mooney ML 1+4@100°C
47 37.1
Glass Transition Temperature, Tg, °C -105.9 -105.57
Solution Viscosity, mPa.s 655 - 240 204