Determination of the concentration of polymers in spinning solutions for production of aromatic polyamide fibres

被引：0
|
作者：
Bykova, LN [1 ]
Venediktova, AG [1 ]
机构：
[1] Moscow State Text Univ, Moscow, Russia
来源：
FIBRE CHEMISTRY | 2001年 / 33卷 / 01期
关键词：
Polymer; Titration; Polymer Solution; Related Equilibrium; Aromatic Polyamide;
D O I：
10.1023/A:1019289916593
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A method it-as developed for finding the concentration of fibre-forming polymers in spinning solutions based on extraction and subsequent titrimetric determination of the solvent. It was found that the solvent is totally extracted front the spinning solution in most cases only during titration. When an extractant is added to the solution, two related equilibria are established between polymer and solvent and between solvent and extractant. The acid-base interaction between solvent and titrant shifts the equilibrium toward extraction of the solvent front the polymer solution.
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页码：63 / 66
页数：4
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