bei Google ScholarTitelangaben
Chacon Castro, Jose Pablo ; Szymoniak, Paulina ; Schneider, Rika ; Schmalz, Holger ; Greiner, Andreas ; Schartel, Bernhard:
Insights into the thermal behavior and flammability of poly(limonene
carbonate).
In: Journal of Thermal Analysis and Calorimetry.
(2026)
.
ISSN 1572-8943
DOI: https://doi.org/10.1007/s10973-026-15352-3
Abstract
This study investigates the thermal behavior of poly(limonene carbonate) (PLimC), focusing on three main areas: molecular mobility, pyrolysis, and flammability. Considering its molecular structure, a key objective is to compare the properties of PLimC with those of conventional polyolefins (PO) and bisphenol A polycarbonate (PC), while also examining the role of the plasticizer in PLimC and the effect of molecular weight.
Molecular mobility was analyzed using broadband dielectric spectroscopy (BDS) and differential scanning calorimetry (DSC); pyrolysis by thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy, and pyrolysis gas chromatography-mass spectrometry (Py-GC-MS); and flammability by cone calorimeter, bomb calorimeter, UL 94, and limiting oxygen index (LOI). Three relaxation processes were identified by BDS: γ (low temperature), β intermediate), and α (near glass transition temperature). Higher molecular weight increased the cooperativity of the α relaxation mobility due to chain entanglements. Plasticizers counteract this effect by increasing free volume and reducing intermolecular interactions, leading to less cooperative molecular dynamics and stronger glass-forming behavior. PLimC resembles polyolefins in its lack of char formation and low LOI (17.2 vol.-% O₂), but its decomposition pathway and effective heat of combustion (29.3 MJ kg-1) are similar to those of PC, producing CO₂ and limonene oxide derivatives. Notably, PLimC has a lower decomposition temperature (242–243 °C). These findings provide a foundation for developing effective flame retardant strategies tailored to PLimC’s hybrid thermal behavior, sharing characteristics of both PO and PC.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Poly(limonene carbonate); Molecular mobility; Thermal properties; Flammability; Flame resistance |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner Profilfelder > Advanced Fields > Polymer- und Kolloidforschung Forschungseinrichtungen > Institute in Verbindung mit der Universität > Bayerisches Polymerinstitut (BPI) |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 24 Feb 2026 09:18 |
| Letzte Änderung: | 24 Feb 2026 09:18 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/96385 |