Zobrazeno 1 - 8
of 8
pro vyhledávání: '"T. I. Podol'skaya"'
Publikováno v:
Fibre Chemistry. 43:104-107
The rheological properties of concentrated solutions of polyacrylonitrile in dimethyl sulfoxide are studied in steady and dynamic regimes of shear flow as a function of the molecular–mass characteristics of the polymer. It is found that as the mole
Publikováno v:
Fibre Chemistry. 43:63-67
A method for decomposing polyamide threads and polyester fabric treated with the germanium-containing preparations Panaxel and Astrogerm-C was developed. The method extracted Ge most completely in order to determine it by spectrophotometry for subseq
Publikováno v:
Fibre Chemistry. 25:13-16
The kinetic characteristics of reactions of isophthaloyl chloride with water, N,N—dimethylacetamide, and isophthalic acid were investigated and the rate constants of these reactions were determined.
Autor:
P. V. Smirnov, T. I. Podol'skaya, N. M. Kvasha, K. G. Khabarova, N. I. Kuz'min, A. S. Chegolya
Publikováno v:
Fibre Chemistry. 23:250-253
Methods have been developed for separating and analyzing oligomers of poly-m-phenyleneisophthalamide having different functional end-groups using the methods of distribution and gel-permeation chromatography.
Autor:
T. I. Podol'skaya, P. V. Smirnov, K. G. Khabarova, N. I. Kuz'min, N. M. Kvasha, A. S. Chegolya
Publikováno v:
Fibre Chemistry. 23:371-374
Using the liquid-chromatography method, a selective procedure has been developed for the quantitative determination of low-molecular compounds in the precipitation bath and the plasticizing bath.
Autor:
T. I. Podol'skaya, K. G. Khabarova, A. S. Chegolya, P. V. Smirnov, N. I. Kuz'min, N. M. Kvasha
Publikováno v:
Fibre Chemistry. 23:253-256
The side reactions which occur during the process of poly-m-phenyleneisophthalamide synthesis have been investigated qualitatively and quantitatively by the liquid-chromatography method.
Publikováno v:
Fibre Chemistry. 20:294-297
A procedure has been developed for determining monoisophthaloyl chloride and isophthalic acid in isophthaloyl chloride. A regime for chromatographing on glass columns has been worked out.
Autor:
P. V. Smirnov, V. I. Bogomolov, R. V. Poponova, T. I. Podol'skaya, N. I. Kuz'min, N. M. Kvasha
Publikováno v:
Fibre Chemistry. 20:354-358
By gas chromatograph-mass spectrometry, mass spectrometry, and liquid chromatography, the following possible contaminants in isophthaloyl chloride have been identified: isophthalic acid, isophthaloyl mono acid chloride, chloroisophthaloyl chloride (a