THE ROLE OF THE PYRIMIDINE RING IN THE MAIN-CHAIN OF POLYAMIC ACIDS AND POLYIMDES .3. COMPARISON OF PROPERTIES OF POLYPYROMELLITAMIC ACIDS BASED ON 2,5-BIS(P-AMINOPHENYL)PYRIMIDINE AND 4,4''-DIAMINOTERPHENYL

THE ROLE OF THE PYRIMIDINE RING IN THE MAIN-CHAIN OF POLYAMIC ACIDS AND POLYIMDES .3. COMPARISON OF PROPERTIES OF POLYPYROMELLITAMIC ACIDS BASED ON 2,5-BIS(P-AMINOPHENYL)PYRIMIDINE AND 4,4''-DIAMINOTERPHENYL Full article

Journal

Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171

Output data

Year: 1993, Volume: 42, Number: 10, Pages: 1673-1676 Pages count : 4 DOI: 10.1007/BF00697037

Tags

POLYIMIDE; POLYPYROMELLITAMIC ACID; 2,5-BIS(P-AMINOPHENYL)PYRIMIDINE

Authors

Artemeva V.N. ¹ , Kudryavtsev V.V. ¹ , Nekrasova E.M. ¹ , Sklizkova V.P. ¹ , Belnikevich N.G. ¹ , Kaluzhnaya L.M. ¹ , Silinskaya I.G. ¹ , Shkurko O.P. ² , Borovik V.P. ²

Affiliations

1	Institute of Macromolecular Compounds, Russian Academy of Sciences, 31 Bolschoi prosp., 199004, St. Petersburg, Russian Federation
2	Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akad. Lavrent'eva, 630090, Novosibirsk, Russian Federation

A comparative study of the behavior of polypyromellitamic acids based on 2,5-bis(p-aminophenyl)pyrimidine and 4,4''-diaminoterphenyl in concentrated dimethylacetamide solutions was carried out by the light-scattering method. It was shown that mutual ordering of the scattering elements is much higher for the pyrimidine-containing polyamic acids than for benzenoid polyamic acids. The Flory-Huggins parameters of the polymer-solvent interaction thus determined indicate that the polymer-polymer interactions increase when a pyrimidine ring is introduced into the polyamic acid or polyimide. Hence, the hypothesis postulating that the amide solvent is displaced by the pyrimidine ring during the shear packing of pyrimidine-containing polymers is confirmed.

Artemeva V.N. , Kudryavtsev V.V. , Nekrasova E.M. , Sklizkova V.P. , Belnikevich N.G. , Kaluzhnaya L.M. , Silinskaya I.G. , Shkurko O.P. , Borovik V.P.
THE ROLE OF THE PYRIMIDINE RING IN THE MAIN-CHAIN OF POLYAMIC ACIDS AND POLYIMDES .3. COMPARISON OF PROPERTIES OF POLYPYROMELLITAMIC ACIDS BASED ON 2,5-BIS(P-AMINOPHENYL)PYRIMIDINE AND 4,4''-DIAMINOTERPHENYL
Russian Chemical Bulletin. 1993. V.42. N10. P.1673-1676. DOI: 10.1007/BF00697037 WOS Scopus РИНЦ

Published print:

Oct 1, 1993

Web of science	WOS:A1993NX10100012
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