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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Bibliographic Details
Published inFibre chemistry Vol. 43; no. 5; pp. 376 - 380
Main Authors Shilova, E. V., Smirnov, S. M., Chernykh, T. E., Tikhonov, I. V., Druzhinina, T. V.
Format Journal Article
LanguageEnglish
Published Boston Springer US 2012
Springer
Springer Nature B.V
Subjects
Acetylation
Chemistry
Chemistry and Materials Science
Diamines
Fibre
Liquid chromatography
Methods
Methods of Investigation
Organic Chemistry
Polymer Sciences
Synthesis
Acetic Anhydride
Sodium Dodecylsulfonate
Diamine
Aromatic Diamine
Paraphenylenediamine
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0015-0541
1573-8493
DOI:10.1007/s10692-012-9368-x