Mc determination and molecular dynamics in crosslinked 1,4-cis-polybutadiene: a comparison of transversal proton and deuterium NMR relaxation
Mc determination and molecular dynamics in crosslinked 1,4-cis-polybutadiene: a comparison of transversal proton and deuterium NMR relaxation
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DOI：
10.1021/ma00040a003
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发表时间：
1992-07
期刊：
影响因子：
5.5
通讯作者：
G. Simon;K. Baumann;W. Gronski
中科院分区：
文献类型：
--
作者：
G. Simon;K. Baumann;W. Gronski
聚合物网络结构和动力学的简化理论模型成功应用于通过将常规链和部分氘化链与秋兰姆交联而产生的 1,4-顺式聚丁二烯网络中的横向 1 H-和 2 H-NMR 弛豫。对于两种独立的松弛方法，松弛曲线在质量上是相等的，并且它们的分析提供了特征网络参数的一致图像。特别是通过两种松弛方法确定的 M c 值彼此非常一致，并且与应力应变测量获得的值非常一致
A simplified theoretical model of the structure and dynamics of polymer networks is successfully applied to the transversal 1 H- and 2 H-NMR relaxation in 1,4-cis-polybutadiene networks produced by cross-linking a mix of conventional and partially deuterated chains with thiuram. For both independent relaxation methods the relaxation curves are qualitatively equal and their analysis provides a consistent picture of the characteristic network parameters. Especially the M c values, which were determined by both relaxation methods, are in good agreement with one another and with values obtained from stress-strain measurements