The determination of longitudinal crystal moduli in polymers by spectroscopic methods
The determination of longitudinal crystal moduli in polymers by spectroscopic methods
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光谱法测定聚合物的纵向晶体模量
DOI：
10.1002/pol.1985.180230612
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
J. Rabolt
中科院分区：
文献类型：
--
作者：
Bruno Fanconi;J. Rabolt
根据最近的处理方法，评价了测定聚合物纵向晶体模量的实验方法，这些方法产生的宏观杨氏模量超过了X射线衍射法所发现的极限值。拉曼和相干非弹性中子散射的光谱技术产生了比X射线衍射更高的纵向晶体模量，并且从本文所述的计算得出结论，这些光谱值是对完全对准和结晶聚合物材料中的最大杨氏模量的更好估计。
Experimental methods for determining longitudinal crystal moduli of polymers were evaluated in light of recent proceesing methods that produced macroscopic Young's moduli which exceeded ultimate values as found by the x-ray diffraction method. The spectroscopic techniques of Raman and coherent inelastic neutron scattering yielded higher longitudinal crystal moduli than x-ray diffraction, and from calculations described herein it is concluded that these spectroscopic values are better estimates of the maximum Young's moduli in fully aligned and crystalline polymeric materials.