Pyrolysis of polyphenylenes with PCL or/and PSt side chains |
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Authors: | Yusuf Nur Seda Yurteri Ioan Cianga Yusuf Yagci Jale Hacaloglu |
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Institution: | aDepartment of Chemistry, Middle East Technical University, 06531 Ankara, Turkey;bIstanbul Technical University, Department of Chemistry, Maslak, Istanbul 34469, Turkey;c“Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania |
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Abstract: | Thermal degradation characteristic of polyphenylenes is an important issue for developing a rational technology of polymer processing and applications. In this study, we discussed thermal degradation of polyphenylenes (PP) with poly(-caprolactone) (PCL) and/or PCL/polystyrene copolymers (PSt) prepared by combined controlled polymerization and cross-coupling processes via direct pyrolysis mass spectrometry. When PP-graft-PCL/PSt copolymers were considered, thermally less stabile PCL side chains decomposed in the first step. In the second stage of pyrolysis, the decomposition of the polystyrene chains has taken place. A slight increase in thermal stability of PCL chains for PP-graft-PCL/PSt copolymers was noted compared to copolymer PP-graft-PCL due to the interaction between PSt and PCL chains. This interaction was stronger when PSt chains were linked to the 2-position of the 1,4-phenylene ring. |
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Keywords: | Poly(p-phenylene) Polystyrene Poly(sciencedirect com/scidirimg/entities/25b -caprolactone)" target="_blank">gif" alt="var epsilon" title="var epsilon" border="0">-caprolactone) Thermal degradation Pyrolysis mass spectrometry |
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