Siloxane Core-Modified Organo Soluble Novel Polyimide/Multi-walled Carbon Nanotube Nanocomposites
| Autor: | Sundaram Gunasekaran, M. Dharmendirakumar |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Nanocomposite Polymers and Plastics General Chemical Engineering Materials Science (miscellaneous) Carbon nanotube law.invention chemistry.chemical_compound chemistry law Siloxane Materials Chemistry Thermal stability Composite material Solubility Dispersion (chemistry) Glass transition Polyimide |
| Zdroj: | Polymer-Plastics Technology and Engineering. 53:903-916 |
| ISSN: | 1525-6111 0360-2559 |
| DOI: | 10.1080/03602559.2014.886057 |
| Popis: | Siloxane core-modified polyimides (PI)/multi-walled carbon nanotubes (MWCNTs) nanocomposites were designed and developed. The confinement of segmental motion of the PI chain due to high dispersion uniformity of the MWCNTs caused the increment in the glass transition temperature (T g ) and remarkable elevated thermal stability. All the PIs could afford better solubility with high dielectric constants of 3.5–5.9 and low water absorptions of 0.42–0.68%. These PIs emitted a strong blue fluorescent at 380 nm, assigning the structural confirmation of PI matrix. Heterogeneous morphology of MWCNT/PI nanocomposites was evidenced by SEM and TEM images, resulted from the incorporation of MWCNT. |
| Databáze: | OpenAIRE |
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