凝胶渗透色谱法分析星型低顺式聚丁二烯的研究

Study of gel permeation chromatography of star shaped low cis polybutadiene

根据星型低顺式聚丁二烯（ＬＣＢＲ）的溶液性能和线型ＬＣＢＲ的ＭａｒｋＨｏｕｗｉｎｋ方程，推导出了星型ＬＣＢＲ的ＭａｒｋＨｏｕｗｉｎｋ参数Ｋ、α的值，并对不同臂数的星型ＬＣＢＲ进行了ＧＰＣ分析。结果表明，采用修改后的Ｋ、α值估算星型ＬＣＢＲ的ＧＰＣ谱图中的相对分子质量基本上是可行的。

On the basis of rheological behavior of star shaped low cis polybutadiene(S LCBR) and the Mark Houwink equation of the linear low cis polybutadiene (L LCBR), the Mark Houwink parameters ( K and α ) for S LCBR were corrected reasonably. The applicablity of the above corrected GPC universal calibration for S LCBR was also examined.