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中文摘要：
采用动态流变学方法，对聚甲基丙烯酸甲酯（PMMA）／聚（苯乙烯-马来酸酐）（PSMA）共混体系的相行为进行了研究．相分离温度由动态储能模量对温度曲线斜率的转折点确定．结果表明，表观相分离温度有很大的频率依赖性，因此，动态流变学方法应用于相分离温度测定时要外推到频率为零．
英文摘要：
The dynamic viscoelasticity of poly （methyl methacrylate ） （ PMMA ）/poly （ styrene-co-maleic anhydirde） （SMA） blends in the molten state was investigated change in slope of the storage modulus and the occurrence of a The apparent phase separation was marked by a peak in the loss tangent as a function of temperature. It was found that the apparent phase separation temperatures are strongly dependent on the frequency applied. The phase separation temperature obtained through extrapolation to zero frequency was lower than the cloud point by turbidity method.
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Extensional viscosity of a thermotropic liquid crystalline polymer measured by thread disintegration
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