Modified method for determining aromatic diamines during the synthesis of oligomeric para-aramids |
| |
| Authors: | E. V. Shilova S. M. Smirnov T. E. Chernykh I. V. Tikhonov T. V. Druzhinina |
| |
| Affiliation: | 1.A. N. Kosygin Moscow State Textile University,Moscow,Russia;2.Research Institute of Chemical Diversity,Moscow,Russia;3.Scientific-Production Company Termoteks,Mytishchi,Russia |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
