Zirconocenes as photoinitiators for free-radical polymerization of acrylates (Articolo in rivista)

Type
Label
  • Zirconocenes as photoinitiators for free-radical polymerization of acrylates (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/1099-0682(20022)2002:2<405::AID-EJIC405>3.0.CO;2-G (literal)
Alternative label
  • E. Polo; A. Barbieri; S. Sostero; M.L.H. Green (2002)
    Zirconocenes as photoinitiators for free-radical polymerization of acrylates
    in European journal of inorganic chemistry (Print); Wiley-VCH - Weinheim, Wheinheim (Germania)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • E. Polo; A. Barbieri; S. Sostero; M.L.H. Green (literal)
Pagina inizio
  • 405 (literal)
Pagina fine
  • 409 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. CNR, Ctr Studio Fotoreatt & Catalisi, Dipartimento Chim, I-44100 Ferrara, Italy 2. Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England (literal)
Titolo
  • Zirconocenes as photoinitiators for free-radical polymerization of acrylates (literal)
Abstract
  • In this paper we report the synthesis of several unbridged zirconocenes, 1a-c, 2 and 5, bearing a phenyl substituent in the position 2 of the cyclopentadienyl ring. We also report their photochemical behaviour and we compare the results with those obtained with the corresponding unsubstituted metallocenes, 3a-c and 4. The study of the electronic spectra and EPR/spin trapping experiments showed the photogeneration of ligand- and zirconium-centred radicals thus making these complexes suitable as photoinitiators for radical polymerisation processes. The introduction of a phenyl group had a positive effect both on the absorption coefficients, improving the light absorption efficiency, and on the reaction yields of t-butylacrylate polymerisation. These results can be explained as the combined effect of an higher persistence of the radical in solution and/or an increased efficiency of the radical in initiating the polymerisation process. (literal)
Editore
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Editore di
Insieme di parole chiave di
data.CNR.it