Gelation in free-radical crosslinking copolymerization; fast transient fluorescence study
The fast transient fluorescence (FTRF) technique was used to study the sol-gel phase transition in free-radical crosslinking copolymerization (FCC) in two different monomeric systems. Pyrene (Py) was used as a fluorescence probe for the in situ polymerization experiments. The fluorescence lifetimes...
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| Format: | Article |
| Language: | English |
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Wiley
2002-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/S1110662X02000181 |
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| _version_ | 1850170900813447168 |
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| author | Ö. Pekcan D. Kaya |
| author_facet | Ö. Pekcan D. Kaya |
| author_sort | Ö. Pekcan |
| collection | DOAJ |
| description | The fast transient fluorescence (FTRF) technique was used to study the sol-gel phase transition
in free-radical crosslinking copolymerization (FCC) in two different monomeric systems. Pyrene (Py) was used as a fluorescence probe for the in situ polymerization experiments. The fluorescence lifetimes of Py
from its decay traces were measured and used to monitor the gelation process. Monomer consumption
profiles were determined during gelation process using Stern-Volmer model. Gelations were performed at
various temperatures and in various crosslinker contents. Composite rate constants, kr were determined
and gelation activation energies, ΔEG were measured. |
| format | Article |
| id | doaj-art-abe43599fa074258b602357757f5ac32 |
| institution | OA Journals |
| issn | 1110-662X |
| language | English |
| publishDate | 2002-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-abe43599fa074258b602357757f5ac322025-08-20T02:20:23ZengWileyInternational Journal of Photoenergy1110-662X2002-01-014415316010.1155/S1110662X02000181Gelation in free-radical crosslinking copolymerization; fast transient fluorescence studyÖ. Pekcan0D. Kaya1Istanbul Technical University, Department of Physics, Maslak, Istanbul 80626, TurkeyIstanbul Technical University, Department of Physics, Maslak, Istanbul 80626, TurkeyThe fast transient fluorescence (FTRF) technique was used to study the sol-gel phase transition in free-radical crosslinking copolymerization (FCC) in two different monomeric systems. Pyrene (Py) was used as a fluorescence probe for the in situ polymerization experiments. The fluorescence lifetimes of Py from its decay traces were measured and used to monitor the gelation process. Monomer consumption profiles were determined during gelation process using Stern-Volmer model. Gelations were performed at various temperatures and in various crosslinker contents. Composite rate constants, kr were determined and gelation activation energies, ΔEG were measured.http://dx.doi.org/10.1155/S1110662X02000181 |
| spellingShingle | Ö. Pekcan D. Kaya Gelation in free-radical crosslinking copolymerization; fast transient fluorescence study International Journal of Photoenergy |
| title | Gelation in free-radical crosslinking copolymerization; fast transient fluorescence study |
| title_full | Gelation in free-radical crosslinking copolymerization; fast transient fluorescence study |
| title_fullStr | Gelation in free-radical crosslinking copolymerization; fast transient fluorescence study |
| title_full_unstemmed | Gelation in free-radical crosslinking copolymerization; fast transient fluorescence study |
| title_short | Gelation in free-radical crosslinking copolymerization; fast transient fluorescence study |
| title_sort | gelation in free radical crosslinking copolymerization fast transient fluorescence study |
| url | http://dx.doi.org/10.1155/S1110662X02000181 |
| work_keys_str_mv | AT opekcan gelationinfreeradicalcrosslinkingcopolymerizationfasttransientfluorescencestudy AT dkaya gelationinfreeradicalcrosslinkingcopolymerizationfasttransientfluorescencestudy |