SCHEDULED MAINTENANCE
Synthesis of stereoregular polymyrcenes using neodymium-, iron- and copper-based catalysts†
Giovanni
Ricci, 
*a
Antonella Caterina
Boccia,
a
Benedetta
Palucci,
a
Miriam
Scoti,
d
Fabio
De Stefano
d
and
Claudio
De Rosa
d
*a
Antonella Caterina
Boccia,
a
Benedetta
Palucci,
a
Miriam
Scoti,
d
Fabio
De Stefano
d
and
Claudio
De Rosa
d
Abstract
β-Myrcene was polymerized with catalysts based on pyridyl-imino complexes of neodymium, iron and copper. Highly stereoregular polymers were obtained: in particular, the neodymium-based catalyst gave highly cis-1,4 polymers (≥97%), while iron and copper catalysts gave a quite unusual structure in the field of stereospecific polymerization, that is, a predominantly alternating cis-1,4-alt-3,4 polymer containing cis-1,4 unit (five units) sequences within the polymer chain. Structural, thermal and mechanical characterization of the obtained polymers was carried out.
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