Blends of PPSQ with high w or low w and PMMA at different mass ratios had been prepared by solution casting.

• 用溶液浇注法制备了具有不同质量配比的高分子量、低分子量梯形聚苯基倍半硅氧烷（PPSQ）与聚甲基丙烯酸甲酯（PMMA）的共混物。