Wang Liying, Gao Xiuzhi, Sun Zhibo, Feng Jiwen
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Science, Wuhan 430071, China.
J Chem Phys. 2009 May 14;130(18):184709. doi: 10.1063/1.3126102.
The chain diffusion between crystalline and amorphous/interfacial regions in semicrystalline ethylene homo- and copolymers was investigated by means of solid-state NMR. It was found that the crystalline chain segment diffusion along the chain-folded path is anomalous and can be characterized by the scaling relation of mean-square displacement, <s(2)> approximately t(1/2).
通过固态核磁共振研究了半结晶乙烯均聚物和共聚物中结晶区与非晶/界面区之间的链扩散。结果发现，结晶链段沿链折叠路径的扩散是反常的，并且可以用均方位移的标度关系<s(2)>∝t(1/2)来表征。
