Fast transient fluorescence (FTRF) technique for monitoring free-radical crosslinking copolymerization (FCC) of styrene (S) with various divinylbenzene (DVB) contents

Ö Pekcan*, D. Kaya

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The gelation during free-radical crosslinking copolymerization (FCC) of styrene (S) and commercial divinylbenzene (DVB) in bulk was studied using Fast Transient Fluorescence (FTRF) technique. Pyrene (Py) was used as a fluorescence probe for the FTRF experiments. Fluorescence lifetimes of Py from its decay traces were measured and used to monitor the gelation processes in various DVB contents. Styrene consumption rates were measured during gelation process employing Stern-Volmer kinetic model. Composite rate constants, kr were determined for each DVB content experiments and it is observed that as DVB is increased kr increases.

Original languageEnglish
Pages (from-to)7865-7871
Number of pages7
JournalPolymer
Volume42
Issue number18
DOIs
Publication statusPublished - 31 May 2001

Keywords

  • Fluorescence
  • Gelation
  • Lifetimes

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