Effect of monomer and solvent quality on the molecular-weight characteristics of poly-m-phenylene isophthalamide
Autor: | K. G. Khabarova, P. V. Smirnov, T. I. Podol'kaya, N. I. Kuz'min, N. M. Kvasha, A. S. Chegolya |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Fibre Chemistry. 24:9-12 |
ISSN: | 1573-8493 0015-0541 |
DOI: | 10.1007/bf00557169 |
Popis: | A procedure has been developed for determining the molecular-weight distribution of poly-m-phenylene isophthalamide by the method of exclusion chromatography. The effect of contaminants in the isophthaloyl chloride and N,N-dimethyl acetamide on molecular-weight distribution of the polymer obtained has been studied. It has been found that the main contaminants which affect molecular-weight characteristics of the polymer are monoisophthaloyl chloride, water, chloroisophthaloyl chloride, and dimethylformamide. |
Databáze: | OpenAIRE |
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