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EFFECT OF PREVIOUS HISTORY ON THE NMR RELAXATION OF POLYETHYLENE
被引:22
作者:
FOLLAND, R
CHARLESBY, A
机构:
[1] Department of Physics, Royal Military College of Science, Shrivenham, Swindon, Wiltshire
关键词:
D O I:
10.1016/0014-3057(79)90235-0
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
The proton spin-spin (T2) relaxation of linear polyethylene in the melt is shown to be dependent on the previous history of the specimen. Differences are observed between the granular (as supplied) and solution crystallized forms of the same material and they persist even after long periods in the melt. Possibilities such as molecular weight segregation and memory effects are investigated. © 1979.
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页码:953 / 955
页数:3
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