http://www.cnr.it/ontology/cnr/individuo/prodotto/ID185376
Understanding the Accelerating Effect of epsilon-Caprolactam on the Formation of Urethane Linkages (Articolo in rivista)
- Type
- Label
- Understanding the Accelerating Effect of epsilon-Caprolactam on the Formation of Urethane Linkages (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/ma0480998 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Monica Bertoldo; Chiara Cappelli; Stefano Catanorchi; Vincenzo Liuzzo; Simona Bronco (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- ISI Web of Science (WOS) (literal)
- Scopus (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- PolyLab-INFM, c/o Dipartimento di Chimica e Chimica Industriale, Universita` di Pisa, via Risorgimento 35, I-56126 Pisa, Italy
Dipartimento di Chimica e Chimica Industriale, Universita` di Pisa, via Risorgimento 35, I-56126 Pisa, Italy (literal)
- Titolo
- Understanding the Accelerating Effect of epsilon-Caprolactam on the Formation of Urethane Linkages (literal)
- Abstract
- The accelerating role of ?-caprolactam on the formation of urethane linkages is studied in
the case of the reaction between toluene 2,4-diisocyanate and n-propanol in carbon tetrachloride at room
temperature. FT-IR spectroscopy is exploited to follow the consumption of the isocyanate groups. The
comparison between the rate of the reactions carried out in the presence and absence of a catalytic amount
of ?-caprolactam shows its accelerating effect. The acylurea-like derivative 1-methyl-2,4-[(2-oxoazepane-
1-carbonyl)amino]benzene has been prepared and identified as the real catalytic species formed in situ
as a result of the reaction between toluene 2,4-diisocyanate and ?-caprolactam. A kinetic model is proposed
to analyze the experimental data, and B3LYP/6-31+G* calculations are exploited to investigate the
structure of 1-methyl-2,4-[(2-oxoazepane-1-carbonyl)amino]benzene and clarify the structural features
leading the catalytic activity. (literal)
- Prodotto di
- Autore CNR
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