Piperno, "From cyclopentadiene
to isoxazoline-carbocyclic nucleosides: a rapid access to biological molecules through nitrosocarbonyl chemistry," Tetrahedron, vol.
Post-metallocenes, also called "molecular" catalysts," are part-metallocene or non-metallocene like one cyclopentadiene
ring and something else or no cyclopentadiene
Moreover, the addition of bromine atoms can significantly improve the EA of V up to 8.8 kcal [mol.sup.-1], depending on the location of the substitution on the cyclopentadiene
The three principal raw-material streams to produce HCR are linear C5s such as piperylene and amylene, cyclic C5s such as cyclopentadiene
, and aromatic C9 and C10 fractions, heavy in reactive monomers such as styrene.
An even greater tendency for the incorporation of higher [alpha]-olefins is evident for the syndiospecific catalyst, [Me.sub.2]C(Cp)(Flu)[ZrCl.sub.2] (Cp = cyclopentadiene
, Flu = fluorene) in the presence of MAO.
59 and 60) reported that copolymers of isobutylene and cyclopentadiene
improved the wet skid resistance of a carbon black-filled SBR/BR tread compound.
for blends of isotactic PP and oligo-(cyclopentadiene
), which showed a lower critical solution temperature of 90 [degrees] C (21).
Here, the norbornene endcap is postulated to dissociate to produce cyclopentadiene
or cyclopentadienyl segments that recombine with maleimide segments to complete the crosslinking reaction.