Linked from
The 8 pages that link to Polybutadiene, each with the reason it gives.
PolyisopreneCompared with: It is a related diene rubber whose repeat unit differs by one carbon.
ButadieneBroader topic: It is the principal polymer made directly from butadiene.
Golf ballRelated: Its resilience makes it a common material for energetic ball cores.
1-ButyneRelated: 1-Butyne can be converted to 1,3-butadiene, a principal feedstock for this polymer.