The segregation behavior of Styrene-Butadiene Rubber (SBR) and poly(α-methylstyrene) (AMS) under a temperature gradient is investigated in detail. SBR and AMS are found to be miscible at an AMS content of 30 phr (23 wt.%), as confirmed by dynamic mechanical analysis. After treatment under a temperature gradient, AMS is observed to segregate toward the surface exposed to the lower temperature, as detected by Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR). The underlying mechanism is further elucidated based on the phase diagram of the SBR/AMS system.
- Quoc-Viet Do
- Masayuki Yamaguchi
- Vu Anh Doan
