Open AccessRESEARCH OF THERMAL AND THERMOMECHANICAL PROPERTIES OF COPOLYMERS BASED ON PYROMELLITE DIANHYDRIDE, 4,4'-DIAMINODIPHENYLOXIDE AND [2-(AMINOMETHYL)BICYCLO[2.2.1]HEPT-3-YL]ANILINES
Author(s) -
И. А. Новаков,
Б. С. Орлинсон,
Р. В. Брунилин,
D. A. Kudryavtseva,
A.A. Solomatina,
E. M. Sukhareva
Publication year - 2021
Publication title -
izvestiâ volgogradskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1990-5297
DOI - 10.35211/1990-5297-2021-12-259-115-118
Subject(s) - pyromellitic dianhydride , bicyclic molecule , thermal stability , copolymer , materials science , polymer chemistry , polymer , chemistry , polyimide , organic chemistry , composite material , layer (electronics)
The thermal and thermomechanical properties of copolyimides based on pyromellitic dianhydride, 4,4'-diaminodiphenyloxide and [2-(aminomethyl)bicyclo [2.2.1]hept-3-yl]anilines in an inert medium have been studied for the first time. It is shown that the introduction into the structure of aromatic polyimides up to 20 mol %. asymmetric vicinally substituted bicyclic diamines allows to obtain materials with increased hydrolytic stability in comparison with fully aromatic polyimides while maintaining a high level of thermomechanical characteristics.