Determination of the concentration of aromatic polyamide in a spinning solution

Autor:	E. N. Papkova, A. V. Novikov, O. Ya. Chesnokova, L. N. Bykova
Rok vydání:	1999
Předmět:	chemistry.chemical_classification Residue (complex analysis) Benzimidazole Titration curve General Chemical Engineering Potentiometric titration Analytical chemistry Hydrochloric acid General Chemistry Polymer Aramid chemistry.chemical_compound chemistry General Materials Science Spinning
Zdroj:	Fibre Chemistry. 31:66-69
ISSN:	1573-8493 0015-0541
DOI:	10.1007/bf02358704
Popis:	A method for determining the concentration of polymer in a spinning solution based on potentiometric titration of hydrochloric acid bound by the tertiary nitrogen of the benzimidazole group in the polymer was developed. The method allows reducing the time of analysis by 2–2.5 times in comparison to the dry residue method of analysis. The method was metrologically certified in an active enterprise. The possibility of using the method of linear regression analysis for processing the spinning solution titration curves without plotting them was demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f5fdcd8765140e184429ef741c0b567f https://doi.org/10.1007/bf02358704 Zobrazit plný text záznamu Full text from SpringerLink