Kinetics of trifluorovinyl ether cyclopolymerization via Raman spectroscopy Academic Article

abstract

• Polymerization kinetics of tris(trifluorovinyloxyphenyl)ethane (TVE) in the bulk are characterized by measuring the disappearance of the fluoro-olefin Raman signal at 1831 cm -1 normalized to an aromatic ring signal as an internal standard. The nth order kinetic model (dx/dt = k(1 -x) n) was applied to determine a reaction order of 20. Reaction rates below 85% conversion measured for various temperatures ranged from 22 10 -3 min -1 (t 1/2 = 454 min) to 31 10 -1 min -1 (t 1/2 = 33 min) for 130 C and 210 C, respectively. Above 85% olefin conversion, second order rate constants deviated from linearity as gelation ensued. An Arrhenius activation energy of 246 kcal mol -1 was determined. The non-destructive Raman technique was found to be an excellent method for measuring the cure kinetics in the bulk and may be applicable to 'on-line' needs for general application of perfluorocyclobutane (PFCB) polyarylether materials. 1998 SCI.

authors

• Laane, Jaan

published proceedings

• POLYMER INTERNATIONAL

author list (cited authors)

• Cheatham, C. M., Lee, S. N., Laane, J., Babb, D. A., & Smith, D. W.

citation count

• 31

complete list of authors

• Cheatham, CM||Lee, SN||Laane, J||Babb, DA||Smith, DW

publication date

• August 1998

publisher

• Wiley  Publisher

published in

• Polymer International  Journal

keywords

• Perfluorocyclobutane Polymers
• Polymerization Kinetics
• Raman Spectroscopy
• Trifluorovinyl Ether Cyclopolymerization

Digital Object Identifier (DOI)

• 10.1002/(SICI)1097-0126(199808)46:4<320::AID-PI23>3.0.CO;2-Y

start page

• 320

end page

• 324

volume

• 46

issue

• 4