Abstract
The electromechanical behavior of an ionic polymer-metal composite (IPMC) based on a chitosan/polyaniline (CP) interpenetrating polymer network (IPN) is influenced by the internal structure of the CP ion exchange membrane. The freeze-drying method was found to be successful in improving the IPMC electromechanical properties. Scanning electron microscopy (SEM) observations indicated that the ion exchange membranes became more porous after freeze-drying. From swelling ratio and differential scanning calorimetry (DSC) measurements, the freeze-dried membranes exhibited a higher swelling ratio and increased free water content. Electron beam deposition was used to manufacture the IPMC metal electrodes. Experiments on the bending of IPMC samples in a direct current electric field showed that the freeze-dried samples had a faster and larger bending motion than non-freeze-dried samples.
Original language | English |
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Pages (from-to) | 889-894 |
Number of pages | 6 |
Journal | Smart Materials and Structures |
Volume | 14 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2005 Oct 1 |
ASJC Scopus subject areas
- Signal Processing
- Civil and Structural Engineering
- Atomic and Molecular Physics, and Optics
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Electrical and Electronic Engineering