http://www.cnr.it/ontology/cnr/individuo/prodotto/ID54543
Designed Organo-Layered Silicates as Nanoreactors for 1,3-Butadiene Polymerization toward Rubber Nanocomposites Synthesis (Articolo in rivista)
- Type
- Label
- Designed Organo-Layered Silicates as Nanoreactors for 1,3-Butadiene Polymerization toward Rubber Nanocomposites Synthesis (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/pola.24238 (literal)
- Alternative label
Leone G.; Boglia A.; Bertini F.; Canetti M.; Ricci G. (2010)
Designed Organo-Layered Silicates as Nanoreactors for 1,3-Butadiene Polymerization toward Rubber Nanocomposites Synthesis
in Journal of polymer science. Part A, Polymer chemistry (Online)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Leone G.; Boglia A.; Bertini F.; Canetti M.; Ricci G. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://onlinelibrary.wiley.com/doi/10.1002/pola.24238/pdf (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Leone G. CNR-ISMAC-Milano; Boglia A. CNR-ISMAC-Milano; Bertini F. CNR-ISMAC-Milano; Canetti M. CNR-ISMAC-Milano; Ricci G. CNR-ISMAC-Milano. (literal)
- Titolo
- Designed Organo-Layered Silicates as Nanoreactors for 1,3-Butadiene Polymerization toward Rubber Nanocomposites Synthesis (literal)
- Abstract
- Organo-modified layered silicates were synthesized
and used as inorganic carriers for CoCl2(PtBu2Me)2-MAO catalyst
in the polymerization of 1,3-butadiene, yielding cis-1,4-
enriched polybutadiene. The organoclays were prepared by: (i)
intercalation of (ar-vinyl-benzyl)trimethyl ammonium chloride
salt through an ion exchange reaction, and (ii) the edge-surface
grafting by trimethylchlorosilane. The ammonium modifier
acts as ''spacer'' increasing the layer d-spacing and as ''filler''
favoring the silylation of the edge-surface clay hydroxyls. The
grafted silane prevents the MAO cocatalyst from reacting with
the edge-OHs, by forcing it to react within the interlayer clay
region. MAO lead to methylation of the cobalt complex and
carbanion abstraction to give a cobalt-methyl cation that is stabilized
by the MAO anion. The nanoconfined cationic alkylated
species insert the butadiene on the Co-Me bond affording the
growth of the polymer chains within the clay layers. The growing
of the macromolecular chains fills the interlayer silicate
region giving an intercalated polybutadiene rubber nanocomposite.
The role of the silicate organo modification on the heterogeneous
catalyst structural features, the polymerization
behavior and the nanocomposite structures are discussed. (literal)
- Prodotto di
- Autore CNR
- Insieme di parole chiave
Incoming links:
- Prodotto
- Autore CNR di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Insieme di parole chiave di