| 초록 |
Poly (ethylene terephthalate) (PET) and PET/A10-MMT nanocomposites containing various Dimethyl 5-sulfoisophthalate Sodium salt,98%(DMSi) contents (1,2,3 mole %) (PETi and PETNi respectively) were prepared by in-situ polymerization and were investigated for morphologies, physical properties and nonisothermal crystallization kinetics. ¹H-NMR spectroscopy was used to confirm the presence of ionic group in PET matrix. It was confirmed by WAXD and TEM micrograph that the dispersion of clay was efficiently dispersed in PET ionomer. Dynamic mechanical properties were measured using DMA and confirmed that DMSi groups affected to disturb the lateral packing in lamellar to reduce the melting temperature. Rheological properties showed that PET3i increased a higher complex viscosity at low frequencies than Pure PET, indicating ionic groups make a cluster. |
