Premium
Unexpected selective enhancement of the thermal stability of aromatic polyimide materials by cerium dioxide nanoparticles
Author(s) -
Gofman Iosif,
Nikolaeva Alexandra,
Yakimansky Alexander,
Ivanova Olga,
Baranchikov Alexander,
Ivanov Vladimir
Publication year - 2019
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4583
Subject(s) - polyimide , materials science , thermogravimetric analysis , nanocomposite , thermal stability , polymer , cerium , nanoparticle , composite material , chemical engineering , composite number , nanotechnology , metallurgy , layer (electronics) , engineering
The unusual effect of selective enhancement of the thermal stability of aromatic polyimide materials was established through the introduction of cerium dioxide nanoparticles into these polymers as nanofiller. Depending on the chemical structure of the polymers, a marked increase or a substantial decrease in the thermal stability of the nanocomposite material was registered by thermal analysis, as compared with that of unfilled polymer material. The positive effect was registered only for the composite materials based on the matrix polyimides containing the sulfur atoms located in the sulfonic groups arranged in the elementary units. The results of the thermogravimetric examination are compared with the data obtained during the mechanical tests of the same samples. The possible reasons for the alteration of the thermal stability of polymers by ceria nanoparticles are discussed. The effect above can be of substantial practical interest providing new options for the design of polyimide nanocomposite materials with enhanced thermal stability.