Abstract
Physical properties, such as thermal and dielectric characteristics, of some aromatic polyimides which contain methylene units have been investigated. The results indicated that the polymers were highly thermostable with decomposition temperature over 450°C and low dielectric constants. The thermogravimetrical values processed by differential method Freeman-Caroll showed that the activation energies and reaction orders are lower in air than in nitrogen.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 481-485 |
| Number of pages | 5 |
| Journal | Materiale Plastice |
| Volume | 47 |
| Issue number | 4 |
| State | Published - Dec 2010 |
| Externally published | Yes |
Keywords
- Activation energy
- Dielectric constants
- Methylene units
- Polyimides
- Thermal characterization
ASJC Scopus subject areas
- General Chemistry
- Mechanics of Materials
- Materials Chemistry
- Polymers and Plastics