Abstract
The two functional properties of tire tread rubbers of prime importance today are low rolling resistance and high wet traction during braking. Rolling resistance and wet traction are related to low tan δ and Tg, respectively. In most of the conventional synthetic rubbers, high Tg is accompanied with high tan δ. Studies on polybutadiene rubbers prepared with anionic catalysts showed that the rubbers containing a high percent of vinyl structure provide exceptions to this general rule. This work demonstrates that vinyl groups in vinyl BR’s do not contribute significantly to tan δ in the frequency/temperature regime corresponding to the rubber plateau region. Guided by our results, a number of experimental rubber compositions were developed for tire treads. These compositions have the desirable combination of high traction and low rolling resistance.
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Aggarwal, S.L., Hargis, I.G., Livigni, R.A., Fabris, H.J., Marker, L.F. (1986). Structure and Properties of Tire Rubbers Prepared by Anionic Polymerization. In: Lal, J., Mark, J.E. (eds) Advances in Elastomers and Rubber Elasticity. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1436-4_2
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DOI: https://doi.org/10.1007/978-1-4757-1436-4_2
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