關於聚乙烯分子量的测定方法在文獻中已有所記載,但由於各人所取試樣的不同,因而甚難比較其結果。此外,在聚乙烯重要工艺性能方面,如在高速下挤压模塑的難易,低溫下的脆折等基本上係决定於試樣分子的形狀及大小,但在已發表的文獻中對試樣分子及工艺性能同時有所闡述者則甚少。與其他所有合成高分子物同,測定聚乙烯分子量的手續頗为冗长,因 Although the method of measuring the molecular weight of polyethylene has been described in the literature, it is difficult to compare the results with the samples taken by each individual. In addition, important technical properties of polyethylene, such as the high-speed extrusion molding is easy, brittle fracture at low temperatures and other basically depends on the shape and size of the sample molecules, but the published literature on the sample Molecules and process performance are also described at the same time are few. As with all other synthetic polymers, the procedure for measuring the molecular weight of polyethylene is quite lengthy because