"hydrosilanes, catalysed by B(C6F5)3, can effectively reduce sulfur–sulfur bonds in complex sulfur-crosslinked tyre rubbers in yields of up to 90%. They demonstrated their process on bicycle inner tubes, solid tyres and tyre crumb, and the resulting polymeric, silyl-protected thiolated oils were straightforward to separate by filtration or centrifugation. The team also showed they could radically or oxidatively crosslink the resulting oils to generate new elastomers, from which they created a new toy tyre as a proof of concept."
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