Coupled Thermogravimetric Analysis-Potentiometric Titration for Complex Analysis of Poly(vinyl chloride) Thermal Stability

IF 4.6 Q1 CHEMISTRY, ANALYTICAL

ACS Measurement Science Au Pub Date : 2025-01-03 DOI:10.1021/acsmeasuresciau.4c0009010.1021/acsmeasuresciau.4c00090

Jonáš Uřičář*, Anežka Chodounská, Václava Benešová, Jiří Brožek and Radka Kalousková,

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引用次数: 0

Abstract

Degradation of poly(vinyl chloride) is a widely discussed topic, and its thermal stability is one of its most important properties. This work uses coupled thermogravimetric analysis-potentiometric titration for simultaneous analysis of sample weight loss and quantification of released hydrogen chloride. The thermal stability point of highly plasticized samples cannot be determined from thermogravimetric measurement alone, as the weight loss derivative change is not clearly visible. This problem is solved by the presented method, which was applied to both unplasticized and plasticized samples. The obtained data can be used to identify the thermal stability point and separate the mass loss caused by the released hydrochloric acid and by other compounds. Such data can be used in the future for determination of more precise parameters for degradation kinetics models.

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来源期刊

ACS Measurement Science Au 化学计量学-

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： ACS Measurement Science Au is an open access journal that publishes experimental computational or theoretical research in all areas of chemical measurement science. Short letters comprehensive articles reviews and perspectives are welcome on topics that report on any phase of analytical operations including sampling measurement and data analysis. This includes:Chemical Reactions and SelectivityChemometrics and Data ProcessingElectrochemistryElemental and Molecular CharacterizationImagingInstrumentationMass SpectrometryMicroscale and Nanoscale systemsOmics (Genomics Proteomics Metabonomics Metabolomics and Bioinformatics)Sensors and Sensing (Biosensors Chemical Sensors Gas Sensors Intracellular Sensors Single-Molecule Sensors Cell Chips Arrays Microfluidic Devices)SeparationsSpectroscopySurface analysisPapers dealing with established methods need to offer a significantly improved original application of the method.