APPLICATION OF TIME-TEMPERATURE SUPERPOSITION PRINCIPLE TO EVALUATION OF SCATTERING INTENSITY EVOLUTION IN PHASE SEPARATION FOR PMMA/SAN BLENDS

• 来源期刊: 高分子科学（英文版）
• 年，卷（期）: 2000,（6）
• 页码范围: 565-568
• 页数: 4页
• 语种: 英文

摘要

Spinodal phase separation behavior of poly(methyl methacrylate)/poly(styrene-co-acrylonitrile) (PMMA/SAN)blends was investigated by the time-resolved small angle light scattering (SALS) technique. It was found that the influence of temperature on the scattering intensity evolution followed the time-temperature superposition principle. The relationship between temperature and the relaxation time of scattering intensity I(t) can be well described by the Williams-Landel-Ferry (WLF) function.