Abstract
Fatigue properties of sulfonated polystyrene ionomers were studied as a function of ion content. It was found that the fatigue performance of ionomers decreased with ion content up to ca. 5 mol %. This was attributed to the cross-linking effect of small ionic aggregates (multiplets). The fatigue lifetime increases sharply at ca. 5 mol %, which corresponds to the critical ion content of polystyrene-based ionomers. This increase in fatigue performance is related to the dominant role of large ionic aggregates (clusters). Finally, the fatigue performance of the ionomers increased gradually with ion content, a result attributed to the reinforcing filler effect of the clusters. The fatigue fracture surface morphologies observed by scanning electron microscopy are discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3183-3186 |
| Number of pages | 4 |
| Journal | Macromolecules |
| Volume | 21 |
| Issue number | 11 |
| DOIs | |
| State | Published - Oct 1 1988 |
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry