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- Title
СТРУКТУРА ТА ВЛАСТИВОСТІ ПОЛПМЩНИХ ОРГАНО-НЕОРГАНІЧНИХ НАНОКОМПОЗИТІВ НА ОСНОВІ ТЕТРАЕТОКСИСИЛАНУ ТА МЕТИЛТРИЕТОКСИСИЛАНУ
- Authors
ШАНТАЛІЙ, Т. А.; НЕСІН, С. Д.; КАРПОВА, І. Л.; МІНЕНКО, М. М.; РУХАЙЛО, М. В.; НЕСТЕРЕНКО, Г. М.
- Abstract
Heat-resistant polymer nanocomposites based on polyimide matrix and mixture of ethoxysilanes have been synthesized and investigated. Using the sol-gel method, samples were obtained based on pyromellitic acid dianhydride and 4,4'-diaminodiphenyl ether and mixtures of tetraethoxysilane and methyltriethoxysilane in the ratio (1: 1, 1: 2) in the amount (5, 20, 50% by weight of the original PACK). e in uence of the ratio and content of ethoxysilanes on the structure and properties of nanocomposites was studied by the methods of X-ray structural analysis, dielectric spectroscopy and thermogravimetric analysis. e established structural dependences for these composites allow us to conclude that there is no signi cant eff ect of the ratio and amount of ethoxysilane introduced into the system to form the inorganic component on the structure. e obtained materials are characterized by high thermal stability, low dielectric constant. e greatest decrease in dielectric constant compared to the original polyimide is observed for samples with diff erent ethoxysilane ratio at 20% content. e resulting nanocomposites are characterized by high thermal stability and can be used in high temperature conditions.
- Subjects
POLYMERIC nanocomposites; PERMITTIVITY; NANOCOMPOSITE materials; THERMAL stability; THERMOGRAVIMETRY; POLYIMIDES; BROADBAND dielectric spectroscopy
- Publication
Polymer Journal / Polymernyi Zhurnal (18181724), 2020, Vol 42, Issue 1, p19
- ISSN
1818-1724
- Publication type
Article
- DOI
10.15407/polymerj.42.01.019