Scattered Intensity from a Chain in a Rubber Network
Scattered Intensity from a Chain in a Rubber Network
复制标题
橡胶网络中链条的分散强度
DOI：
10.1021/ma60057a040
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发表时间：
1977
期刊：
影响因子：
5.5
通讯作者：
D. S. Pearson
中科院分区：
文献类型：
--
作者：
D. S. Pearson
导出了橡胶网络中链只在交联处相互作用的散射律S(Q)，即“幻影”橡胶网络。这一结果与Jan-Nink和他的同事之前推导的一个网络链的散射定律进行了比较，该网络链的单元与施加的应变密切相关。这两种情况下的散射强度与|q|有显著不同的依赖关系，其中q是定义为入射波矢量和散射波矢量之间的差值的散射矢量。例如，S(Q)的新表达式表明，与仿射变形的链相比，幻影橡胶网络中链的回转半径随外加应变的变化要慢一些。这一预测与最近橡胶网络上的中子散射结果是一致的。
A scattering law, S (q), is derived for a chain in a rubber network in which the chains interact only at the cross-links, ie, a “phantom” rubbernetwork. The result is compared to a scattering law previously derived by Jan-nink and co-workers for a network chain whose units move affinely with the applied strain. The scattered intensity for thetwo cases has a significantly different dependence on| q| where q is the scattering vector defined as the differ-ence between the incident and scattered wave vectors. For example, the new expression for S (q) indicates that the radius of gyration of a chain in a phantom rubber network changes less rapidly with the applied strain than an affinely deformed chain. This prediction is consistent with recent neutron scattering results on rubber networks.