M. Peng et Q. Zheng, Application of time-temperature superposition principle to evaluation of scattering intensity evolution in phase separation for PMMA/SAN blends, CHIN J POLY, 18(6), 2000, pp. 565-568
Spinodal phase separation behavior of poly(methyl methacrylate)/poly(styren
e-co-acrylonitrile) (PMMA/SAN) blends was investigated by the time-resolved
small angle light scattering (SALS) technique. It was found that the influ
ence of temperature on the scattering intensity evolution followed the time
-temperature superposition principle. The relationship between temperature
and the relaxation ti me of scattering intensity I(t) can be well described
by the Williams-Landel-Ferry (WLF) function.