Fluorescent Polyolefins by Free Radical Post-Reactor Modification with Functional Nitroxides (Articolo in rivista)

Type

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

Label

• Fluorescent Polyolefins by Free Radical Post-Reactor Modification with Functional Nitroxides (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.reactfunctpolym.2012.06.021 (literal)

Alternative label

• Cicogna, Francesca; Coiai, Serena; Pinzino, Calogero; Ciardelli, Francesco; Passaglia, Elisa (2012)
  Fluorescent Polyolefins by Free Radical Post-Reactor Modification with Functional Nitroxides
  in Reactive & functional polymers (Print); Elsevier, Oxford (Regno Unito)
  (literal)

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

• Cicogna, Francesca; Coiai, Serena; Pinzino, Calogero; Ciardelli, Francesco; Passaglia, Elisa (literal)

Pagina inizio

• 695 (literal)

Pagina fine

• 702 (literal)

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

• 72 (literal)

Rivista

• Reactive & functional polymers (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• CNR-ICCOM UOS Pisa, Area della Ricerca CNR, via G. Moruzzi 1, 56124 Pisa, Italy (literal)

Titolo

• Fluorescent Polyolefins by Free Radical Post-Reactor Modification with Functional Nitroxides (literal)

Abstract

• The 4-(1-naphthoate)-2,2,6,6-tetramethylpiperidine-1-oxyl (NfO-TEMPO) has been synthesized and successfully grafted in the melt onto a random poly(ethylene-co-1-ottene) copolymer. Functionalized polyolefins have been prepared by coupling reaction between NfO-TEMPO free radicals and macroradicals which have been formed by H-abstraction induced by the presence of a peroxide. In order to deepen insight into the functionalization mechanism, the reaction has been investigated by Electron Paramagnetic Resonance (EPR). EPR spectra collected during the reaction run, have evidenced the decrease of TEMPO signal as a consequence of temperature increasing. This decrease has been attributed to the formation of a covalent bond between macroradicals and nitroxide free radical. The resulting functionalized polyolefins, PO-g-(NfO-TEMPO), have been characterized by FT-IR and 1H NMR which has allowed to evaluate their functionalization degree, whereas UV-Vis and fluorescence spectroscopy have been used to investigate their optical properties. The comparison with low molecular weight model compounds, has allowed to state that our methodology can be conveniently adopted to prepare fluorescent polyolefins where the optical properties of the chromophore has been completely transferred to polymer backbone both in solution and in the condensed phase. (literal)

Editore

• Elsevier (Editore)

Prodotto di

• Sviluppo e applicazioni di metodologie preparative di materiali polimerici funzionali nanostrutturati in processi di reactive blending (PM.P03.015.005) (Modulo)
• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)

Autore CNR

• SERENA COIAI (Unità di personale interno)
• CALOGERO PINZINO (Unità di personale interno)
• FRANCESCO CIARDELLI (Persona)
• ELISA PASSAGLIA (Persona)
• FRANCESCA CICOGNA (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)
• Sviluppo e applicazioni di metodologie preparative di materiali polimerici funzionali nanostrutturati in processi di reactive blending (PM.P03.015.005) (Modulo)

Autore CNR di

• CALOGERO PINZINO (Unità di personale interno)
• ELISA PASSAGLIA (Persona)
• FRANCESCO CIARDELLI (Persona)
• FRANCESCA CICOGNA (Unità di personale interno)
• SERENA COIAI (Unità di personale interno)

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

• Reactive & functional polymers (Rivista)

Editore di

• Elsevier (Editore)