| 초록 |
The presence of small percentage of the ionic groups leads the ionomers to show unique mechanical properties. Sometimes, it is not easy to process few of the ionomers, e.g. the sulfonated polystyrene ionomers due to strong interaction between the sulfonate ionic groups. In order to facilitate the processing at lower temperatures without significant adverse effects on the mechanical properties, various types of plasticizers can be used. Rather than adding plasticizers in the ionomers, we used the comonomer unit itself as the internal plasticizer. For the first time, we have synthesized new polystyrene based ionomers namely poly(styrene-co-3-sulfopropyle methacrylate) SPMANa, and studied their properties dynamic mechanically. We also compared the mechanical properties of SPMANa ionomers with similar ionomers, e.g. poly(styrene-co-styrenesulfonate) SSNa and poly(styrene-co-methacrylate) MANa ionomers. The detailed study will be presented. |
