Enhanced dielectric properties of all-organic acrylic resin elastomer-based composite with doped polyaniline
| Autor: | Gao-Qiang Wang, Hua Ren, Jingwen Wang, Sen-Qiang Wu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Thermogravimetric analysis
Materials science Polymers and Plastics Composite number 02 engineering and technology General Chemistry Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Elastomer 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry visual_art Polyaniline Materials Chemistry visual_art.visual_art_medium Dielectric loss Composite material 0210 nano-technology Acrylic resin High-κ dielectric |
| Zdroj: | Polymer Bulletin. 75:2901-2916 |
| ISSN: | 1436-2449 0170-0839 |
| DOI: | 10.1007/s00289-017-2194-9 |
| Popis: | Polyaniline (PANI) doped with p-toluene sulfonic acid (PTSA) was synthesized by chemical oxidation method under the condition of conventional magnetic stirring (PTSA–PANI) and ultrasonic vibration (uPTSA–PANI) separately. Acrylic resin elastomer (ArE) was synthesized via radical polymerization. Novel all-organic dielectric elastomer composites (refer to the resultant composites herein as ArE/PTSA–PANI and ArE/uPTSA–PANI) were obtained by solution casting method. Chemical and microstructure characterization of the two kinds of resultant composites suggested that uPTSA–PANI possessed larger crystalline domain than that of PTSA–PANI and a unique branched structure. The dielectric properties of composites were measured in a wide frequency range, and the results demonstrated that both ArE/2.0% PTSA–PANI and ArE/2.0% uPTSA–PANI owned a high dielectric constant of more than 30 at 100 Hz, representing ten times increase with respect to neat ArE matrix (≈ 3). Moreover, it was found that ArE/2.0%uPTSA–PANI held better comprehensive dielectric properties at high frequency than that of ArE/2.0% PTSA–PANI composite; that was to say, ArE/2.0% uPTSA–PANI composite possessed not only high dielectric constant but also low dielectric loss. In addition, the thermogravimetric analysis indicated that the composite possessed better thermal stability than that of neat ArE. In addition, the elastic modulus of ArE/2.0% uPTSA–PANI composite was lower than 5 MPa. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink