Thermographic analysis of monomers in the production of threads from aromatic polyamides

Thermographic analysis of monomers in the production of threads from aromatic polyamides

It was shown that differential scanning calorimetry (DSC) can be used successfully for analytical monitoring of raw material for the production of highly thermally stable aramid fibers. The method was used to analyze mixtures of 5(6)-amino-2-( p -aminophenyl)benzimidazole (DAPBI) and amino-2( p -imi...

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Veröffentlicht in:Fibre chemistry 2012-05, Vol.44 (1), p.68-73
Hauptverfasser: Shablygin, M. V., Sklyarova, G. B., Komissarov, S. V.
Format: Artikel
Sprache:eng
Schlagworte:
Aromatic polyamides
Chemistry
Chemistry and Materials Science
Crystal structure
Differential scanning calorimetry
Mathematical analysis
Methods of Investigation
Monitoring
Monomers
Organic Chemistry
Polyamides
Polyimides
Polymer Sciences
Production processes
Raw materials
Terephthalic acid
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Beschreibung
Zusammenfassung:It was shown that differential scanning calorimetry (DSC) can be used successfully for analytical monitoring of raw material for the production of highly thermally stable aramid fibers. The method was used to analyze mixtures of 5(6)-amino-2-( p -aminophenyl)benzimidazole (DAPBI) and amino-2( p -iminoquinone)benzenediimide (AIPDI), p -phenylenediamine, and the dichlorides of iso- and terephthalic acids. Use of the DSC method enabled the compositions of the crystalline modifications of DAPBI—AIPDI to be monitored continuously and the purity of the monomeric systems to be characterized during production of aromatic polyamides and polyimides.
ISSN:0015-0541
1573-8493
DOI:10.1007/s10692-012-9401-0