title: Influence of regio- and stereoregularity of propene insertion on crystallization behavior and elasticity of ethene-propene copolymers.
abstract: Melting enthalpies of several ethene-propene samples, obtained by different single-center catalytic systems and having widely different constitutions and compositions in the range of industrial interest, are compared. For the first time, a clear evidence of influence of the regio- and stereoregularity of propene insertion on crystallization behavior of ethene/propene copolymers is provided. This influence is in qualitative agreement with the results of simplified energy calculations relative to models of pseudo-hexagonal packing of ethene-propene copolymers.
authors.affiliation: Dipartimento di Chimica, Università di Salerno, I-84081 Baronissi (SA), Italy.
authors.forename: Gaetano
authors.initials: G
authors.lastname: Guerra
authors.forename: Maurizio
authors.initials: M
authors.lastname: Galimberti
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Piemontesi
authors.forename: Odda
authors.initials: O
authors.lastname: Ruiz de Ballesteros