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1H N.m.r. relaxation and molecular motion of polyethylene in solution as studied by the isotopic dilution technique

Authors
Journal
Polymer
0032-3861
Publisher
Elsevier
Publication Date
Volume
23
Issue
4
Identifiers
DOI: 10.1016/0032-3861(82)90099-4
Keywords
  • Molecules
  • Motion
  • Polyethylene
  • Isotopic Dilution
  • Nuclear Magnetic Resonance
  • Relaxation

Abstract

Abstract The molecular motion of polyethylene has been studied in decalin-d 18 solution by 1H n.m.r. relaxation with the isotopic dilution technique which can separate the proton spin-lattice relaxation times into the intra- and intermolecular contributions, intra T 1 and inter T 1. The temperature dependences of intra and inter T 1s show that the intra- and intermolecular motions are in the extreme narrow region. These results, also, were compared with the results of molten polyethylene reported in our previous work.

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