Pyrolysis of poly(phenylene vinylene)s with polycaprolactone side chains

Yusuf Nur, Demet G. Colak, Ioan Cianga, Yusuf Yagci, Jale Hacaloglu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The thermal degradation characteristics of a new macromonomer poly(ε-caprolactone) with central 4,4′-dicarbaldehyde terphenyl moieties and poly(phenylene vinylene)s with well defined (ε-caprolactone), (PPV/PCL) as lateral substituents were investigated via direct pyrolysis mass spectrometry. The unexpectedly high thermal stability of the macromonomer was attributed to intermolecular acetylation of benzaldehyde yielding a hemiacetal and causing a crosslinked structure during the pyrolysis. Increased thermal stability of the PCL chains was detected for all samples. The increase in stability of PCL chains was much more pronounced than was detected for poly(p-phenylene)-graft-poly(ε-caprolactone) copolymer (PPP/PCL); the upward temperature shift was about 100 °C for PPV/PCL and only 20 °C for PPP/CL. This pronounced effect may be due to higher thermal stability of PPV compared to PPP and the decrease in steric hindrance for PPV with PCL side chains.

Original languageEnglish
Pages (from-to)904-909
Number of pages6
JournalPolymer Degradation and Stability
Issue number5
Publication statusPublished - May 2008


  • Poly(ε-caprolactone)
  • Poly(phenylene vinylene)
  • Pyrolysis mass spectrometry
  • Thermal degradation


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