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Monomer consumption rates during gelation at various temperatures: A fast transient fluorescence study
Author(s) -
Pekcan Ö.,
Kaya D.
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1768
Subject(s) - pyrene , monomer , ethylene glycol dimethacrylate , fluorescence , copolymer , polymer chemistry , ethylene glycol , activation energy , materials science , methyl methacrylate , transient (computer programming) , methacrylate , chemistry , chemical engineering , polymer , organic chemistry , composite material , physics , quantum mechanics , computer science , engineering , operating system , methacrylic acid
The gelation during free‐radical crosslinking copolymerization (FCC) of methyl methacrylate (MMA) and ethylene glycol dimethacrylate (EGDM) was studied by using fast transient fluorescence (FTRF) technique. Pyrene (Py) was used as a probe for the FTRF experiments. Fluorescence lifetimes of Py from its decay traces were measured and used to monitor the gelation process at various temperatures. MMA consumption rates were measured during gelation process by using the Stern–Volmer model. Gelation activation energy Δ E G was measured and found to be 15.6 kcal mol −1 . © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 3161–3168, 2001