A mechanistic study on the polymerization of n-butyl isocyanate by pruitt-baggett adduct

✍ Scribed by Osman Yilmaz; Ali Usanmaz; Kemal Alyürük

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 308 KB
• Volume: 28
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(92)90275-7

✦ Synopsis

The mechanism of the polymerization of n-butyl isocyanate by the Pruitt-Baggett adduct (PBA) was studied; on the basis of the experimental evidences, a coordinated mechanism was proposed and verified. This mechanism considers a monatomic active site, which is the Fe atom of PBA with Lewis acid character. The N atom of the isocyanate monomer is coordinated by the Fe atom and the resultant positive charge is transmitted to another N atom which covalently binds the growing chain to the active centre. Thus the formed ammonium ion is added to the incoming monomer yielding Nylon-1 structure and the active site is regenerated.