Modified method for determining aromatic diamines during the synthesis of oligomeric para-aramids

A modified high-performance liquid chromatography method for determining the quantitative content of unreacted paraphenylenediamine and diaminophenylbenzimidazole in the presence of dimethylacetamide is proposed. The method includes acetylation of the reaction mixture after copolycondensation of the...

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Veröffentlicht in:	Fibre chemistry 2012, Vol.43 (5), p.376-380
Hauptverfasser:	Shilova, E. V., Smirnov, S. M., Chernykh, T. E., Tikhonov, I. V., Druzhinina, T. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acetylation Chemistry Chemistry and Materials Science Diamines Fibre Liquid chromatography Methods Methods of Investigation Organic Chemistry Polymer Sciences Synthesis
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A modified high-performance liquid chromatography method for determining the quantitative content of unreacted paraphenylenediamine and diaminophenylbenzimidazole in the presence of dimethylacetamide is proposed. The method includes acetylation of the reaction mixture after copolycondensation of the para-oligomeric copolyamide in the presence of an excess of the aromatic diamines.
ISSN:	0015-0541 1573-8493
DOI:	10.1007/s10692-012-9368-x