Infrared spectroscopy as an effective tool in ring-opening metathesis polymerization: monitoring the polymerization kinetics of norbornene with amine-based Ru catalysts in real time

Author(s)

Tomazett, Vinicius K. ; Santos, Willy G. ; Lima-Neto, Benedito S.

• Document type: Journal article
• Source: Reaction Kinetics Mechanisms and Catalysis; v. 120, n. 2, p. 663-672, APR 2017.
• Web of Science Citations: 4

Abstract

This work describes the use of the ATR-FTIR technique to investigate the ring-opening metathesis polymerization (ROMP) of norbornene with amine-based Ru complexes of type {[}RuCl2(PPh3)(2)(amine)]. Polymerization rates (R-P) were determined by monitoring the appearance of the polymer absorption band at 970 cm(-1) (trans-CH=CH) or the disappearance of the monomer absorption band at 1336 cm(-1) (cis-CH=CH). The results revealed that the amines, as ancillary ligands (pyrrolidine, piperidine, and peridroazepine), present an effective contribution to the polymerization rate (R-p). (AU)

• FAPESP's process: 12/19823-4 - Phototransients of organoboranes generated by photolysis and Flavin sensitization.
• Grantee: Willy Glen Santos
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 15/13756-1 - Photochemistry and Excited-states Dynamics of Tetraarylborates and Tetraarylborate-pyridinium complexes.
• Grantee: Willy Glen Santos
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• FAPESP's process: 12/24617-4 - Synthesis of Functionalized Metal-monomers of Barrelene with Polipyridines of Ru(II) to Obtaining Polymeric Sensitizers via ROMP
• Grantee: Vinícius Kalil Tomazett
• Support Opportunities: Scholarships in Brazil - Doctorate