论文部分内容阅读
采用不同实验方法：ＳＡＸＳ、ＮＭＲ和激光Ｒａｍａｎ光谱。对甲苯和辛烷萃取的聚乙烯样品的中间层及其它结晶结构参数进行了研究，结果表明三种方法测得的中间相厚度有所不同，但均反映出辛烷萃取的聚乙烯样品中间层厚度比甲苯萃取的大。从测试和计算结果得出，中间层厚度与其它结构参数相比不可忽略。结晶聚合物结构以“三相模型”代替传统的“两相模型”可望逐渐被人们接受。
Different experimental methods were used: SAXS, NMR and laser Raman spectroscopy. The interlayer and other crystalline structure parameters of poly (ethylene) samples extracted with toluene and octane were studied. The results show that the thickness of mesophase measured by the three methods is different, but both reflect the octane-extracted polyethylene sample interlayer Thicker than toluene extraction. From the test and calculation results, the thickness of the middle layer can not be ignored compared with other structural parameters. Crystalline polymer structure “three-phase model” instead of the traditional “two-phase model” is expected to gradually be accepted.