SEARCH Articles Figures Tables Cyclopentadiene hydrogenation Cyclopentadiene, and Cyclopentadienes, and Hydrogenation butenes Hydrogenation of 1-butene Hydrogenation poly Of 1-butene Oligo Oligos Phase hydrogenation Phase transformation phases Phase transformations Poly phases Poly transformation Poly-1-butene Polymorphic transformations Polymorphism and Polymorphism and polymorphs