کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5186882 | 1381115 | 2005 | 8 صفحه PDF | دانلود رایگان |
The phase-separation behavior of poly(methyl methacrylate)/poly(α-methyl styrene-co-acrylonitrile) (PMMA/α-MSAN) blends with two different compositions was studied by time-resolved small angle light scattering (SALS) in the spinodal decomposition (SD) regime from 160 to 210 °C. The rheological function (WLF-like equation) was introduced into the processing of light scattering data. It was found that the WLF-like equation was applicable to describe the temperature dependence of apparent diffusion coefficient Dapp and the relaxation time Ï of normalized scattering intensity (I(t)âI(0))/(ImâI(0)) at the early stage of SD, as well as the relaxation time Ï of maximum scattering intensity Im and characteristic scattering vector qm with Im at the late stage of SD for PMMA/α-MSAN blends with two different compositions. This is in consistence with the phase-separation behavior of PMMA/SAN reported in our previous paper.
Journal: Polymer - Volume 46, Issue 24, 21 November 2005, Pages 11085-11092