Ethylene-Norbornene Copolymers by ansa Fluorenyl Metallocenes: Mechanistic Considerations on the Basis of Tetrad and Pentad Analysis (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Ethylene-Norbornene Copolymers by ansa Fluorenyl Metallocenes: Mechanistic Considerations on the Basis of Tetrad and Pentad Analysis (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1007/s11244-006-0117-3 (literal)

Alternative label

• Tritto I., Boggioni L., Zampa C., Sacchi M.C., Ferro D.R. (2006)
  Ethylene-Norbornene Copolymers by ansa Fluorenyl Metallocenes: Mechanistic Considerations on the Basis of Tetrad and Pentad Analysis
  in Topics in catalysis
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Tritto I., Boggioni L., Zampa C., Sacchi M.C., Ferro D.R. (literal)

Pagina inizio

• 151 (literal)

Pagina fine

• 161 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://link.springer.com/article/10.1007%2Fs11244-006-0117-3 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 40 (literal)

Rivista

• Topics in catalysis (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• ISMAC-CNR (literal)

Titolo

• Ethylene-Norbornene Copolymers by ansa Fluorenyl Metallocenes: Mechanistic Considerations on the Basis of Tetrad and Pentad Analysis (literal)

Abstract

• The microstructure of ethylene (E)-norbornene (N) copolymers obtained by C s-symmetric i-Pr[(Cp)(9-Flu)]ZrCl2 (1) and C 1-symmetric i-Pr[(3-R-Cp)(9-Flu)]ZrCl2 (R = Me (2); R = i-Pr (3)) was determined by 13C NMR at tetrad (1) and pentad level (2, 3), respectively. This has allowed to study the influence of Cp substitutions on the statistical model of copolymerizations: Markov 1 statistics for 1 and 2; Markov 2 for 3, where the penultimate unit influences next insertion owing to steric interactions between i-Pr and copolymer chain. The presence of only racemic ENNE sequences in E-N copolymers by 1 shows that copolymerizations occur through chain migratory mechanism. Chain backskips account for the formation of both meso and rac NEN sequences with 1 and for the insertion of N and E at the same site of 2 and 3. (literal)

Prodotto di

• Catalisi per nuove architetture macromolecolari e sistemi polimerici nanostrutturati e biomimetici (PM.P02.005.003) (Modulo)
• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)

Autore CNR

• DINO ROMANO FERRO (Unità di personale esterno)
• INCORONATA TRITTO (Persona)
• LAURA BOGGIONI (Persona)
• MARIA CARMELA SACCHI (Persona)

Incoming links:

Autore CNR di

• LAURA BOGGIONI (Persona)
• MARIA CARMELA SACCHI (Persona)
• INCORONATA TRITTO (Persona)
• DINO ROMANO FERRO (Unità di personale esterno)

Prodotto

• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)
• Catalisi per nuove architetture macromolecolari e sistemi polimerici nanostrutturati e biomimetici (PM.P02.005.003) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Topics in catalysis (Rivista)