| 초록 |
The effects of the addition of LiCl adn CsCl salts to Li- and Cs-neutralized styren-co-methacrylate inomers, respectively, on the mechanical properties and morphology of the ionomers were studied. It was observed that with increasing inorganic salt contents, the ionic modulus increased, which indicated that the inorganic salts in the ionomers would act as filler. However the types of the salts did not affect the increase in the ionic modulus. It was also found that the addition of the inorganic salts did not change the matrix Tgs of the ionomers strongly, but decreased the cluster Tg significantly and slowly for the LiCl-and CsCl-containing ionomers, respectively. In addition with increasing salt contents, an SAXS peak shifted to slightly lower angles. The above findings suggested that some of the inorganic salts reside in the multiplet with the ionic groups of the ionomers, acting as plasticizers. |
