Journal of Polymer Science Part A Polymer Chemistry · 1991 · 22 citations · 3 references
Natural SciencesChemical EngineeringChemistryPolymer ChemistryPolymer EngineeringThermal AnalysisBiodegradationPolymer AnalysisPolymer CharacterizationPolymer DegradationPolymer Physical ChemistryThermogravimetric AnalysisGas Chromatography-mass SpectrometryHydroxybenzoic AcidsPolymer Degradation MechanismsPolymer Thermal DegradationPyrolysisPyrolysis Gas Chromatography Mass SpectrometryThermal Degradation ProductsThermal Degradation Studies
Abstract The thermal degradation mechanisms of liquid crystalline aromatic polyesters (LCPs) prepared from p ‐hydroxybenzoic acid (PHB), biphenol (BP), and terephthalic acid (TA) were studied by pyrolysis–gas chromatography/mass spectrometry (Py‐GC/MS). The LCP containing deuterated terephthalate units and the LCPs that have different comonomer ratios were examined. On the basis of the pyrolysis products determined, the origin of the main pyrolysis products (benzene, phenol, biphenyl, phenyl benzoate, etc.) from the corresponding comonomer units were estimated and their thermal degradation mechanisms were eventually discussed in detail.
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