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The most common elastomer substance utilised today can be a styrene-butadiene copolymer. It brings together the Attributes of polybutadiene, which can be a hugely rubbery polymer (Tg = -a hundred °C) having large hysteresis and thus giving fantastic soaked grip Attributes, Using the Homes of polystyrene, that's a glassy polymer (Tg = one hundredÂ