| 초록 |
The dynamic mechanical properties of poly(styrene-sodium styrenesulfonate) (PSSANa) ionomer mixtures of different ion concents were studied. It was found that the mixing process does not change the degree of clustering. However, the slope of ionic plateau became steeper as the difference in the ion contents of two ionomers in an ionomer mixture increased, suggesting that the inhomogeneity of the matrix and cluster phases increased. It was also observed that the difference between the matrix and cluster Tgs increased with increasing divergence of the ion contents of two ionomers in an ionomer mixture. In addition, when the difference of the two ion contents larger than ca. 6 mol%, the ionomer mixture started to show a trace of a phase-separation. |
