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    Compound (IRB7) Properties

    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

    Microstructure

    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

    Molecular weight characteristics

     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

    Physical properties

    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